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PRECISTA B-UHR LIMITED EDITION- PRS-42

Shortly after the German Luftwaffe was regrouped in 1935 the Ministry of Aviation (Reichsluftfahrtministerium) or RLM introduced three different kinds of watches to their fighter pilots, bomber crews, and ground personnel The first one was a single/double pusher type chronograph manufactured by Hanhart and Tutima, Glashütte. The ground crew was equipped with a fairly inexpensive type of field watch. And finally there was the probably most famous type of watch: the Luftwaffe observer’s watch or Beobachtungsuhr (“B-Uhr”).


Here is the 1942 original spec sheet for a “Type B dial” B-Uhr manufactured by Wempe Chronometerwerke, Hamburg. Note the inner 12 hour chapter ring on the dial, the large crown and thick crown tube:

Wempe

The B-Uhr was issued to all bomber crews and was mainly carried by the navigator who used it for all sorts of navigational purposes. The watch was not part of the personal equipment but was handed out before a mission and had to be returned after. The original spec sheet demanded the B-Uhr to be fitted with a very accurate centre seconds pocket watch movement with hacking second which was tested and regulated to the highest standards by the German Naval Observatory in Hamburg. Since those precision movements were originally designed for pocket chronometers the watches were very large even by today’s standards.
The cabins of German bombers were in most cases unpressurized and unheated. That is why most B- Uhren were fitted with a very long and safety-riveted leather strap with roller buckle so that it could be worn over the sleeve of the thick shearling flight jacket. Some of later versions were delivered on a shorter strap (“Kurzband”) so that they could be worn as a normal watch during missions.

A German airman checks the mission protocol before sortie. His type “B” B-Uhr is worn outside his heavy sheepskin flight jacket. Look at the inner chapter ring on the dial and the short hour hand. Only type “B” versions had this specific detail.

Navigator

The B-Uhr was manufactured by 5 different companies in two dial configurations. Design and assemblage were carried out according to a strict and precise RLM spec sheet. Nevertheless there are some notable differences between the different contracts which make original B-Uhren in good condition even more desirable for any serious watch collector.
Common features for all of them were the high quality chronometer grade movements with Breguet balance springs, indirect centre seconds with hacking feature, oversized cases and crowns for superb legibility and easy winding and setting.

Here is a group shot which shows both dial versions and also illustrates the subtle differences between each manufacturer’s cases. Note the different crown and lug shapes and differences in lug spacing:

Group

A beautifully aged Laco type “B”. The luminous material on the dial has faded to a nice cream color. Please note the three-piece case construction and that only the even numbers on the outer chapter ring are lumed. This is a detail that is not captured in most of the modern reproductions.

Laco

Key features of the original contracts:

A.Lange & Söhne, Glashütte: The Lange features a field grey coated zinc or nickel alloy case with 55mm diameter, onion style crown with thick crown tube, “A” and “B” type dials, cal. 45 and 48/1 in-house movements with three-quarter plate, swan-neck regulator and 16 jewels, gilded finish. Not all of them were assembled in Glashütte but assemblage and regulation was sometimes done by subcontractors, Wempe, Hamburg and Huber, Munich being among them.

Erich Lacher & Co (Laco), Pforzheim: The Laco features a field grey coated zinc diecast case with soldered brass lugs with 55mm diameter, onion style crown with long and sturdy crown tube, type “A” and “B” dial, very large in-house caliber Durowe 5 with22 jewels and gilded finish.

International Watch Company (IWC), Schaffhausen: The IWC features a bead blasted full stainless steel case with 55mm diameter, crowns are either cylindrical or diamond shaped for later versions, the lug spacing was also widened by 2mm for later versions to accept a sturdier strap, type “A” is the only dial option, cal. 52 SC (seconde central) in-house movement with three-quarter plate, 16 jewels and swan-neck regulator, gilded finish.

Walter Storz (Stowa), Pforzheim: The Stowa features a field grey coated zinc diecast case with 55mm diameter, oblong onion style crown, type “A” and “B” dial versions, Unitas cal. 2812 with 20 jewels, swan-neck regulator, nickel plated finish with Geneva stripes.

Wempe Chronometerwerke, Hamburg: The Wempe features a field grey coated 55mm zinc alloy diecast case, although some claim that at least a couple of them were assembled with 800-alloy silver cases, onion style crown, type “A” and “B” dial versions, Thommen cal. 31 with 15 jewels and cam regulator, gilded finish.

The PRS-42 –our take on the B-Uhr

PRS-42

Drawing

 

When we decided to make a B-Uhr our first thought was “But we have to do it properly!”. In this case “proper” starts with the correct movement and case. Putting a modern automatic movement into some vintage inspired watch just seemed not good enough.

The Movement


Luckily we were able to source a small number of very rare Unitas pocket watch movements that have been adapted to indirect centre seconds modification by an expert Swiss company. This is a very expensive and even rarer movement that is exactly in keeping with the original 1942 specification for the Wehrmacht B-Uhr: It is a large and beautifully finished pocket watch movement with blued screws and Geneva stripes that completely fills the case. It also features a classic swan neck regulator and screwed balance for superb accuracy. What truly sets it apart from any competitor is its unique and improved hacking device. When you pull the crown the watch does not simply stop: the seconds hand will continue to run until it stops on the 12 hour indicator. This truly is an ingenious feature that is available on this specific movement only.

Movement

The Case


The watch case design is not taken from any specific manufacturer but is instead an amalgamation of the best design features compressed into a smaller and much more wearable watch. The case features the straight and square lugs of the Laco but they have been beefed up and slightly lengthened for good comfort.
The crown is a very large onion style crown with a thick and strong crown tube that makes winding and setting really smooth and easy. The crystal is of course a modern sapphire crystal with internal A/R coating but we managed to replicate the complex, yet beautiful domed shape of the original acrylic “Plexiglas” crystal with its several internal and external radiuses.
Like the original B-Uhr this is a three-piece case design but it’s not a snap-on bezel and caseback: the bezel and back are screwed down. It is a full CNC construction made from 316L stainless steel with a period correct dark grey bead blasted finish. The top loader design eliminates the use of a movement retaining ring. This is a high quality solution and just the way the old B-Uhren were made.

Dial, Hands and Strap


When we decided to make a type “B” B-Uhr we knew from the start that the dial was a critical part. Too many watches on the market have wrong dial layouts and what is even more important: the Superluminova is not correctly applied. Vintage type “B” dials only have the even numbers on the outer chapter ring lumed. We have done it correctly.
Also the blued hands are just as they should be. They have the correct length and width, are properly pointed, and are evenly filled with strong glowing Superluminova C3 (cream-light green) to match the lume on the dial.
The leather strap is made from camel coloured Pittards’ nubuck leather which is thick but supple and will develop a beautiful patina with wear. The strap takes most design features from the original “Kurzband” short-style strap which was introduced with later versions of the B-Uhr. It features the correct hardware and roller buckle which are now made from much more durable stainless steel with a matching bead blasted finish.

Setting

MODEL
PRECISTA B-UHR LIMITED EDITION PRS-42
CASE
Material
316L stainless steel, bead-blasted finish
Diameter
44mm, 51mm across including crown
Lug to lug height
55.8mm
Thickness 14.7mm to the top of the bombé crystal
Lug spacing 24mm
Anti-magnetic
4800 A/m
Water resistance
50 metres/166 feet
Weight
89 grammes, head only
Features
Screw back (both view back and solid back)
DIAL
Colour
Black, type B
Luminous
SupeLuminova C3. Hour chapter: all numbers luminous. Minute chapter: even numbers luminous. Minute hash markers: all luminous
Day/Date
N/A
HANDS
Style
Blued steel sword type, luminous filled. Seconds hand blued steel with white tip
Luminous
SuperLuminova C3
CRYSTAL
Bombé sapphire crystal with anti-reflective coating on the underside
MOVEMENT
Unitas 6497-1 18 jewels Stop Seconde Centrale "Premium". Rhodium Cotes de Geneve (9 stripes), Incabloc shock protection, blue screws, Glucydur screwed balance wheel with Nivarox hairspring and swan-neck regulator
BATTERY
N/A
STRAP
Custom aviator style with stainless steel rivets (screws) and hardware with stainless steel roller buckle. Made from Premium Pittards leather

 

Supplied in a 1060 Peli case and with 2 years guarantee. 50 pieces only available.

 

Gallery

 

 

 

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Product ref:  Precista B-UHR LIMITED EDITION- PRS-42
Available from Tuesday 25 October 2016


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PRECISTA ROYAL NAVY DIVER RE-EDITION - PRS-82

The Precista Royal Navy diver is arguably the rarest of all British issued dive watches, being issued in 1981 and 1982 only. The stock number is 0552/923-7697 which curiously, was also the number used on Rolex and CWC issued divers around this time. I have seen only two examples offered for sale in the last 12 months and both commanded a price in excess of £2,000. Hardly Milsub prices but nonetheless, higher than anyone would have thought possible a few years ago.

Apart from the asymmetrical case, the most distinctive feature of this model is the hands; the hands have two familiar names, one of them is "snake head" hands and you'll have to use Google for the other name ;-)

11

This re-edition uses the same ETA movement as the original, the ETA2783 25 jewel automatic. These are new old stock movements which have been cleaned, lubricated and adjusted in August 2013. The luminous is the same "vintage lume" used on the dials of the Precista PRS-20 California dial.

12

MODEL
PRECISTA ROYAL NAVY DIVER PRS-82
CASE
Material
316L stainless steel, brushed finish
Diameter
Bezel 40mm, 45mm across including crown
Lug to lug height
47mm
Thickness 14mm to the top of the bombé crystal
Lug spacing 20mm
Anti-magnetic
4800 A/m
Water resistance
200 metres
Weight
98 grammes with strap and buckle
Features
Screw back, screw down crown, unidirectional 120 click bezel
DIAL
Colour
Semi-matte black
Luminous
Hour markers SuperLuminova "vintage lume"
Day/Date
N/A
HANDS
Style
Snake head style with white frame, luminous filled
Luminous
SuperLuminova "vintage lume"
CRYSTAL
3mm domed sapphire, A/R coating underside
MOVEMENT
ETA 2783 25 jewel automatic running at 21,600 BPH with Incabloc shock protection
BATTERY
N/A
STRAP
Period style silicone rubber strap with signed stainless steel buckle, brushed finish.

The PRS-82 is guaranteed for 2 years.

 

Gallery

 

 

 

Product ref:  Precista Royal Navy Diver - PRS-82
SOLD OUT - more on order


PRECISTA BRONZE WATCH - PRS-30

This watch was conceived during a forum discussion from June 2008. Several designs were put forward before finally deciding on this one and during the discussion it was suggested that this shouldbe a bronze watch. Had it been possible to source the correct grade of bronze at the time, the PRS-30 woujld have been one of the first bronze watches available. In the event, sourcing a (comparatively) small quantity of bronze proved difficult until a supplier who was prepared to supply it in kilos, rather than tonnes, was located in Switzerland.

One of the main appeals of bronze watches is the way in which the case slowly oxidises and changes colour to a rich chocolate brown, in the same way as bronze works of art patinate. Of course the natural bronze colour can be maintained if preferred by gentle polishing or wiping with a mildly acidic liquid (Coca-Cola is recommended by some). Patination will not initially be uniform across the entire case although this can be accelerated by using any of the methods to be found by conducting a "Google" search.

The thumbnails below show some of the design suggestions posted during the discussions. Thanks to Chris Parker for his design shown on the right, the design which went forward for production.

The watch has a 33mm visible dial, which is of two-layer sandwich construction with a dark brown/charcoal dial and SuperLuminova C3 coating on the under-dial showing through the numbers and indices cut-outs. The domed sapphire crystal is 2.2mm thick and has anti-relective coating to the underside. The 12-pointed star crown (unique to this watch) measures 4.5mm high by 7mm across and is signed with the Precista "P" ambigram. The hands are black frame with SuperLuminova C3 filled tips; the end of the seconds hand is also luminous coated.

MODEL
PRECISTA BRONZE WATCH PRS-30
CASE
Material
Bronze alloy C6300 CuAl10Ni5Fe4, brushed finish with stainless steel back
Diameter
42mm, 46mm across including crown
Lug to lug height
49mm
Thickness 12mm to the top of domed crystal
Lug spacing 24mm
Anti-magnetic
4800 A/m
Water resistance
100 metres
Weight
112 grammes with strap and buckle
Features
Screw back
DIAL
Colour
Semi-matte dark brown/charcoal, sandwich dial construction
Luminous
Hour markers SuperLuminova C3
Day/Date
Date window at 4:30 position
HANDS
Style
Black frame, luminous tipped
Luminous
SuperLuminova C3
CRYSTAL
2.2mm domed sapphire, A/R coating underside
MOVEMENT
ETA 2824-2 "Top" grade 25 jewel automatic running at 28,800 BPH with quickset date and Incabloc
BATTERY
N/A
STRAP
Hand-made thick leather (very soft) one black and one brown and one signed bronze buckle

The PRS-30 bronze watch is packed in a Peli case and comes with two hand-made leather straps, one signed bronze buckle and is guaranteed for 2 years.

Please make a note in the "Comments" box on the order whether you want the black or brown strap fitting to the watch.

Gallery

 

Product ref:  Precista Bronze Watch- PRS-30
Available from Tuesday 13 August 2013


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PRECISTA "ITALIAN" CALIFORNIA DIAL - PRS-20C

Due to popular demand the California dial version of the Precista "Italian" is now available . This is not a limited edition.

The watch has a wonderfully large 37.4mm visible dial, which is of two-layer sandwich construction with a semi-matte black dial and vintage lume (Super Luminova base) coating on the under-dial showing through the numbers and indices cut-outs. The domed sapphire crystal is1.5mm thick and has anti-relective coating to the underside. The diamond-shape crown measures 5mm high by 8mm across and is signed with the Precista "P". The hands are gilt frame with vintage lume (Super Luminova base) filling.

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MODEL
PRECISTA ITALIAN CALIFORNIA DIAL PRS-20
CASE
Material
316L stainless steel, polished
Diameter
44mm, 48.5mm across including crown
Lug to lug height
50.7mm
Thickness 11.2mm to the top of domed crystal
Lug spacing 24mm
Anti-magnetic
4800 A/m
Water resistance
100 metres
Weight
100 grammes with strap
Features
Screw back
DIAL
Colour
Semi-matte black, sandwich dial construction
Luminous
Hour markers vintage lume (Super Luminova base)
Day/Date
None
HANDS
Style
Gilt frame, luminous filled
Luminous
Vintage lume (Super Luminova base)
CRYSTAL
1.5mm domed sapphire, A/R coating underside
MOVEMENT
ETA (Unitas) 17 jewel hand winding, calibre 6497/8-1 (18,000 BPH).
BATTERY
N/A
STRAP
Custom Banda ostrich grain calf leather. Signed buckle.

The Italian is guaranteed for two years.

Gallery

Product ref:  Precista Italian California Dial - PRS-20C
In Stock


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PRECISTA 93 300 metre diver's watch - PRS-18 QUARTZ & AUTOMATIC

This was one of the more popular of the Precista military re-editions and is now available again due to overwhelming demand. This model was issued from at least 1989 until 1993 with the ordnance numbers 6645-99, 757-3314. The original had a mineral crystal and was fitted with the ISA 1198 single jewel quartz movement. In keeping with my policy of updating the specification, the PRS-18Q is fitted with a sapphire crystal with anti-reflective coating on the underside and a Ronda 715Li 5 jewel quartz movement with a 10 year battery life, the automatic is fitted with the Miyota (Citizen) 24 jewel automatic movement with hacking seconds and hand winding capability, calibre 9015.

This watch is made in Germany.

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MODEL
PRECISTA 93 – PRS-18 QUARTZ
CASE
Material
316L stainless steel,completely bead blasted
Diameter
Bezel 39mm, 43.5mm across including crown
Lug to lug height
47.5mm
Thickness 12.5mm
Lug spacing 20mm
Anti-magnetic
4800 A/m
Water resistance
300 metres, double Viton 'O' ring seals on case back
Weight
80 grammes without strap
Features
Screw down crown, 120 click unidirectional bezel
DIAL
Colour
Semi-matte black
Luminous
Hour markers & bezel triangle Super Luminova C3
Day/Date
None
HANDS
Style
Plain skeleton hands, luminous filled
Luminous
Super Luminova C3
CRYSTAL
3mm thick sapphire, anti-reflective coating underside
MOVEMENT
Ronda 715Li quartz, 5 jewels with 10 year battery life
BATTERY
CR2016 Lithium
STRAP
NATO of choice

timefactors watches

MODEL
PRECISTA 93 – PRS-18 AUTOMATIC
CASE
Material
316L stainless steel,completely bead blasted
Diameter
Bezel 39mm, 43.5mm across including crown
Lug to lug height
47.5mm
Thickness 12.5mm
Lug spacing 20mm
Anti-magnetic
4800 A/m
Water resistance
300 metres, double Viton 'O' ring seals on case back
Weight
80 grammes without strap
Features
Screw down crown, 120 click unidirectional bezel
DIAL
Colour
Semi-matte black
Luminous
Hour markers & bezel triangle Super Luminova C3
Day/Date
None
HANDS
Style
Plain skeleton hands, luminous filled
Luminous
Super Luminova C3
CRYSTAL
3mm thick sapphire, anti-reflective coating underside
MOVEMENT
Miyota (Citizen) 24 jewel automatic with hacking seconds, calibre 9015
BATTERY
N/A
STRAP
NATO of choice

16 May 2007: PRS-18-Quartz allocated NATO Stock Number 6645-99-891-0585. This number is engraved on the back of all PRS-18-Q from 12 June 2007.

Supplied on a NATO strap of choice with 24 months guarantee.

The PRS-18Q is currently sold out, delivery date for new stock not yet known.

Gallery

Product ref:  Precista 93 PRS-18Q & 18A
Both out of stock

PRECISTA PRS-3

The PRS-3 is the non-limited version of the PRS-3 limited edition below. The specification is identical to the limited edition version except for the bezel and hands.

MODEL
PRECISTA PRS-3
CASE
Material
316L stainless steel, brushed on top and polished sides
Diameter
42mm, 46mm across including crown
Lug to lug height
49.6mm
Thickness 12.45mm to top of crystal
Lug spacing 22mm
Anti-magnetic
4800 A/m
Water resistance
300 metres
Weight
205 grammes on steel bracelet, 125 grammes on PU strap
Features
Screw down crown, screw back, 60 click bezel with elapsed time insert
DIAL
Colour
Black
Luminous
Hour markers Super Luminova C3
Day/Date
Date at 6 o'clock position
HANDS
Style
White framed military-style hands
Luminous
Super Luminova C3
CRYSTAL
3mm flatsapphire, anti-reflective coating on underside
MOVEMENT
ETA2824-2 standard running at 28,800 BPH with quickset date, Incabloc shock protection
BATTERY
N/A
STRAP
Fitted with stainless steel solid link bracelet with custom solid end pieces, screwed adjustment links and with safety fliplock clasp with divers' extension

The PRS-3 is guaranteed for two years and will be supplied fitted with a stainless steel bracelet plus a black PU strap. Supplied in a single watch travelling case.

Gallery

Product ref:  Precista PRS-3 - £340.00
In Stock


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PRECISTA PRS-3 LE 300 metre Automatic Diver

Many of you will remember the Broadarrow PRS-3 first launched in 2003 and will also remember that following a legal dispute over the name "Broadarrow" (or "Broad Arrow"), the PRS-3 had to be discontinued. Many customers have asked for the PRS-3 to be reintroduced and I am happy to announce that it's back, bigger and better!

This is no simple reintroduction, the watch has been completely redesigned from scratch, as the drawings below show. Bigger, at 42mm; better bezel and thicker sapphire crystal; better construction with a screw-in crown tube, improved crown assembly, metal movement ring and finally, a quality solid link steel bracelet with perfectly fitting solid end-pieces.

The regular version of the PRS-3 will have a black dial with white framed plongeur hands and a regular elapsed time bezel insert but to launch the new PRS-3, a limited edition of four different colours with a combined countdown/12 hour bezel insert and supplied with a PU strap to match the colour of the dial. Each colour is produced in 50 numbered pieces.

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Precista

MODEL
PRECISTA PRS-3 LE
CASE
Material
316L stainless steel, brushed on top and polished sides
Diameter
42mm, 46mm across including crown
Lug to lug height
49.6mm
Thickness 12.45mm to top of crystal
Lug spacing 22mm
Anti-magnetic
4800 A/m
Water resistance
300 metres
Weight
205 grammes on steel bracelet, 125 grammes on PU strap
Features
Screw down crown, screw back, 60 click bezel with elapsed time insert
DIAL
Colour
Black
Luminous
Hour markers Super Luminova C3
Day/Date
Date at 6 o'clock position
HANDS
Style
Plongeur hands, different colours for different dials
Luminous
Super Luminova C3
CRYSTAL
3mm flatsapphire, anti-reflective coating on underside
MOVEMENT
ETA2824-2 standard running at 28,800 BPH with quickset date, Incabloc shock protection
BATTERY
N/A
STRAP
Fitted with stainless steel solid link bracelet with custom solid end pieces, screwed adjustment links and with safety fliplock clasp with divers' extension

Supplied on a steel bracelet in a single-watch travelling case with 24 months guarantee and a PU strap in the same colour as the selected dial colour.

Gallery  

Product ref:  PRECISTA PRS-3 LE 300 metre Automatic Diver- £340.00
Yellow and Orange only in Stock


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PRECISTA 89 200 metre diver's watch - PRS-17 QUARTZ & AUTOMATIC

This model was issed in 1988 and 1989 only with the ordnance numbers 6645-99, 75733 14 and interestingly, was fitted with a different dial for each of the two years of issue. The dial on this model is in the style of that fitted to the 1989 original.

The original had a mineral crystal and was fitted with the ETA 955.114 seven jewel quartz movement. In keeping with my policy of updating the specification, the PRS-17Q is fitted with a sapphire crystal with anti-reflective coating on the underside and a Ronda 715Li 5 jewel quartz movement with a 10 year battery life. This watch is made in Germany by Walter Fricker GmbH & Co KG, the company which made the Dreadnought.

The automatic version is now also available.

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MODEL
PRECISTA 89 – PRS-17 QUARTZ
CASE
Material
316L stainless steel, brushed and polished
Diameter
Bezel 37.3mm, 43mm across including crown
Lug to lug height
44.57mm
Thickness 10.9mm
Lug spacing 20mm
Anti-magnetic
4800 A/m
Water resistance
200 metres, double 'O' ring seals on case back
Weight
60 grammes without strap
Features
Screw down crown, 120 click unidirectional bezel
DIAL
Colour
Semi-matte black
Luminous
Hour markers & bezel triangle Super Luminova C3
Day/Date
Date at 4.30 position
HANDS
Style
Plain skeleton hands, luminous filled
Luminous
Super Luminova C3
CRYSTAL
2mm thick sapphire, anti-reflective coating underside
MOVEMENT
Ronda 715Li quartz, 5 jewels with 10 year battery life
BATTERY
CR2016 Lithium
STRAP
NATO of choice.

timefactors watches

MODEL
PRECISTA 89 – PRS-17 AUTOMATIC
CASE
Material
316L stainless steel, brushed and polished
Diameter
Bezel 37.3mm, 43mm across including crown
Lug to lug height
44.57mm
Thickness 10.9mm
Lug spacing 20mm
Anti-magnetic
4800 A/m
Water resistance
200 metres, double 'O' ring seals on case back
Weight
70 grammes without strap
Features
Screw down crown, 120 click unidirectional bezel
DIAL
Colour
Semi-matte black
Luminous
Hour markers & bezel triangle Super Luminova C3
Day/Date
Date at 4.30 position
HANDS
Style
Plain skeleton hands, luminous filled
Luminous
Super Luminova C3
CRYSTAL
2mm thick sapphire, anti-reflective coating underside
MOVEMENT
ETA 25 jewels automatic, calibre 2824-2
BATTERY
N/A
STRAP
NATO of choice.

16 May 2007: PRS-17-Quartz allocated NATO Stock Number 6645-99-426-0190. This number is engraved on the back of all PRS-17-Q from 12 June 2007.

Supplied on a NATO strap of choice with 12 months guarantee.

11 November 2009: automatic now sold out.

Gallery

Product ref:  Precista 89 200 metre Diver's Watch
Sold out and discontinued

ISO


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