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Doulgas Grand Prix WT Professional Racing Watch - Black PVD - René Bonnet Djet 1962 Limited Edition
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This Douglas Grand Prix WT Professional bracelet racing watch features a black dial with C3 Super-LumiNova®, a highly legible arrow shaped second hand, a Hesalite glass, and a stainless steel case - with black PVD treatment - water resistant to 100m.
This black dial black PVD automatic racing watch - powered by the Japan made automatic movement Citizen/Miyota 8315 with a 60-hour power reserve (approx.) - is equipped with a choice of a two-piece black vegetable tanned Italian rally leather strap, a black "Rally" Tropic rubber strap, or a 316L stainless steel beads-of-rice bracelet.
SKINDIVER WT PROFESSIONAL OVERVIEW
RENE BONNET DJET 46 - LE MANS 1962 - LIMITED EDITION CASEBACK
The Grand Prix Professional - René Bonnet Djet 1962 Limited Edition - is secured with a screw-down caseback and the first 962 pieces come with a limited edition caseback.
The special casebacks of these racing watches are individually numbered and feature, along with the technical markings, a deep engraving with enamel of the proverbial moto “THE PROOF IS IN THE RACING” and the 1962 Le Mans race winning car of its category, the René Bonnet Djet number 46.
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SKINDIVER WT PROFESSIONAL OVERVIEW
THE RENÉ BONNET DJET N°46
In 1962, after years of fruitful collaboration with Charles Deutsch within the “DB – Deutsch Bonnet” car manufacturer, René Bonnet went solo and introduced the “DJET”.
This sport car concept became reality when the DJET number 46 passed the finish line at Le Mans legendary endurance race in June 24th, 1962.
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DJET N°46
CLASS E 1.15 WINNER
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LE MANS 1962
SKINDIVER WT PROFESSIONAL OVERVIEW
THE FIRST REAR MID-ENGINED
PRODUCTION SPORTS CAR
The DJET made wide use of the then emerging fiberglass technology; an engineering domain in which René Bonnet was a pioneer.
After the Le Mans racing “proof of concept”, few months later at the 1962 Paris Auto Show, the DJET became the world's first rear mid-engined production sports car, respectively 4 and 6 years before the Lamborghini Miuria and the Dino 246 GT de Ferrari.
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GRAND PRIX wt PROFESSIONAL - DJET 1962 - lIMITED EDITION OVERVIEW
• AUTOMATIC MOVEMENT
60h power reserve / Hacking-second / Quick date setting
• HESALITE GLASS
Impact resistant / Inner cyclops
• STAINLESS STEEL CASE
Ø 40MM / 316L stainless steel
• 3 ChOICES of STRAPs & Bracelet
Italian vegetable tanned leather strap / Rally Tropic rubber strap / Metal bracelet
• WATER-RESISTANCE
100M≈10ATM
• SWISS SUPER-LUMINOVA®
C3 Super-LumiNova® on all hands and indices
• UNI-DIRECTIONAL BEZEL
120 clicks / 60 graduations & 12 world cities / time zones
• ASSEMBLED IN FRANCE
Hand-assembled / Regulated to ±15 seconds per day
• AUTOMATIC MOVEMENT
60h power reserve / Hacking-second / Quick date setting
• HESALITE GLASS
Impact resistant / Inner cyclops
• STAINLESS STEEL CASE
Ø 40MM / 316L stainless steel
• 3 ChOICES of STRAPs & Bracelet
Italian vegetable tanned leather strap / Rally Tropic rubber strap / Metal bracelet
• WATER-RESISTANCE
100M≈10ATM
• SWISS SUPER-LUMINOVA®
C3 Super-LumiNova® on all hands and indices
• UNI-DIRECTIONAL BEZEL
120 clicks / 60 graduations & 12 world cities / time zones
• ASSEMBLED IN FRANCE
Hand-assembled / Regulated to ±15 seconds per day
GRAND PRIX WT PROFESSIONAL - dJET 1962 - LIMITED EDITION OVERVIEW
• AUTOMATIC MOVEMENT
60h power reserve / Hacking-second / Quick date setting
• HESALITE GLASS
Impact resistant / Inner cyclops
• STAINLESS STEEL CASE
Ø 40MM / 316L stainless steel
• 3 CHOICES OF STRAPS & BRACELET
Italian vegetable tanned leather strap / Rally Tropic rubber strap / Metal bracelet
SKINDIVER WT PROFESSIONAL X-15 LIMITED EDITION OVERVIEW
• WATER-RESISTANCE
100M≈10ATM
• SWISS SUPER-LUMINOVA®
C3 Super-LumiNova® on all hands & indices
• UNI-DIRECTIONAL BEZEL
120 clicks / 60 graduations & 12 world cities / time zones
• ASSEMBLED IN FRANCE
Hand-assembled / Regulated to ±15 seconds per day
SKINDIVER WT PROFESSIONAL OVERVIEW
DEPENDABLE & SOLID RACING WATCH
• Tachymeter scale & rotating bezel to measure average speed and elapsed time
• 60 min. / sec. timing and 12 time zones tracking functions
• Hand finished brushed 316L stainless steel case
• Glass box Hesalite glass
• Drilled lugs for easy strap changes
• Water resistance: 10 ATM / 100m
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AUTOMATIC MOVEMENT: JAPANESE RELIABILITY & QUALITY
Citizen / Miyota 8315 Automatic (Self-winding mechanical):
• 60 hours power-reserve
• Hacking-second
• Quick date setting
In-house modifications and operations:
• Modification of the date disk to a “Roulette” style disk with the date in black on odd days and red on even ones
• Control and setting with a tolerance of ±15 seconds and a beat error of 0,6ms
TACHYMETER:
MEASURE AN AVERAGE SPEED
How to use the tachymeter to measure the average speed of a car between two points at 0km (A) and 1km (B)?
1. When the car passes the point A, start timing with the bezel by placing the 12:00 o'clock arrow of the bezel at the time the second hand is / was.
2. When the car passes the point B, read the elapsed time in seconds on the bezel. For instance, 20s.
3. Rotate back the bezel to 0 and read on the tachymeter scale the speed matching the elapsed time from step 2. For instance, if a car passed the point B at 20s you can read 180km/h on the tachymeter scale, so the car had an average speed of 180km/h between the point A and the point B.
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TIME ZONES
TRACKING FUNCTION
On the bezel, the “+” and “-” in front of the cities allow you to define if these cities are before or after Greenwich, and if you need to read a time difference clockwise or anti-clockwise. Between “Greenwich” and “+Tokyo”, you have a time difference of +9 hours and between “Greenwich” and “-Denver” you have a time difference of -7 hours.
Let’s say you are in Sebring, Florida, USA and you want the time in Le Mans, France.
1. Sebring follows the Eastern Time Zone / UTC-05:00 (defined by “-New York” on the bezel), then you need to rotate the bezel and put "-New York" on the hour marker just passed by the hour hand. If it's 12:30 in Sebring. Then you place "-New York" on the 12:00 marker.
2. Le Mans follows Paris time zone / UTC+01:00. Paris is a forward time zone (there is a little “+” in front), you read the bezel clockwise and you see that it indicates 18:00. So, it's 18:30 in Paris and Le Mans.
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SKINDIVER WT PROFESSIONAL OVERVIEW
HESALITE GLASS: THE PRO’S CHOICE
From the 1960s and earlier, armed forces around the world along with NASA issued wrist-watches secured with Hesalite glasses to service men, pilots and astronauts. Why? Hesalite offers high transparency, strong impact resistance and do not shatter like glass or sapphire would.
To this day, above or under the ocean, in a cockpit, or even in space, the possibility of having tiny bits of glass floating around or having the face of the watch exposed to the elements is considered an unnecessary risk and a direct threat to mission success.
SKINDIVER WT PROFESSIONAL OVERVIEW
ASSEMBLED IN FRANCE
Like Wolbrook and Douglas watches back in the 1960s, the Grand Prix racing watches are carefully assembled by professional and trained watchmakers in France, nearby Besançon.
The movements are customized – with a “Roulette” style date disk in the case of the Grand Prix WT Professional - and regulated by our watchmakers.
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DOUGLAS GRAND WT PRIX PROFESSIONAL - DJET 1962 - LIMITED EDITION IN "MM"
40mm diameter x 48mm lugs to lugs x 13mm thickness / 20mm lug width
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"Wolbrook Grand Prix” and “Douglas Grand Prix” watches are not associated or affiliated with, or authorized or endorsed by, or in any way officially connected with the Formula 1 Companies and/or the FIA Formula One World Championship.