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The distinctive duochronograph
What drives us to create nothing but the best? We refuse to rest on our laurels. We live to master new challenges. So it is with the 757 series. The logical successor to the 756 duochronograph, equipped with a very special feature: the captive stainless steel bezel with minute ratcheting. The result? It's suspiciously close to being the perfect pilot's watch.
- TEGIMENT and dehumidifying technology
- Magnetic field protection up to 80,000 A/m
- Captive stainless steel pilot's bezel with minute ratcheting and TEGIMENT technology
- Nickel-free case back
- Sapphire crystal glass with anti-reflective coating on both sides
- Screw-fastened, doubly sealed crown
- Doubly sealed push-piece with integrated guard
- Anthracite galvanized dial, UV-resistant
- Functionally reliable at temperatures from –45 ºC to +80 ºC
- Pressure resistant to 20 bar (= 200 m water depth) and high-altitude resistant
Technical Data
Model 757
Movement:
- Valjoux 7750
- Mechanical lever movement with self-winding mechanism
- 25 jewels and 28.800 vibrations per hour
- Antimagnetic according to DIN 8309
- Shock resistance according to DIN 8308
- Quick adjustment of date
- Chronograph (stop function)
- Metering range of chronograph: 12 hours
- Hand setting with second hand stop
Functions:
- Inactive luminous hands (hour, minute) and indices
- Hours, minutes, seconds
- Date in dial aperture
- Sweep seconds, 30-minute- and 12-hour-recorder
Case:
- Tempered stainless steel (tegimented to 1200 HV), sand-blasted
- Undetachable, tegimented pilot’s rotating bezel with black anodized aluminum ring with luminous triangle, bidirectional, snaps every minute
- Screwed-on nicklefree case back
- Screw-down crown with flank protection
- Sinn Dehumidifying Technology, dehumidifying capsule filled with copper sulfate, with a sapphire crystal aperture, displaying the humidity: white (dry) to blue (saturated)
- Sapphire crystal, antireflective coating on both sides
- Magnetic field protected to 80.000 A/m= 100mT
- Water resistant according to DIN 8310
- Pressure resistant up to 20 bar = approx 200 m diving depth
Measurements:
- Case diameter 43 mm
- Lug width 22 mm
Guarantee:
- 3 years
Strap:
- Leather or bracelet