Chronograph Watches - Model 917 GR

The Rally Chronograph
 

You’ve been on the road for five hours now. You’ve mastered the mountain pass with its hairpin turns, and are now ready for the next time trial. Rallye racing requires extreme precision and reliable functionality. And that’s exactly what the 917 rallye chronograph delivers. For example with the easy-to-set countdown bezel that makes it possible to read off finish times with to-the-second accuracy. With red numerals to call added attention to the all-important, final 15 seconds. The traditionally styled dial and nonreflective sapphire crystal glass make it easy to read all important information at a glance. And thanks to the power reserve indicator, designed to resemble a fuel gauge, you can be sure that your chronograph is 100 % reliable.
In addition to technological sophistication, the 917 GR chronograph offer the robust reliability of a mechanical watch: shock-resistance and anti-magnetic, with a solid stainless steel case and the freedom from fogging that only the special Ar-Dehumidifying Technology from SINN can ensure. All in all, this new watch is perfectly suited for use in road rallies as well as any other situation.

- Case made of stainless steel,  polished
- Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
- Sapphire crystal glass
- Transparent case back made of sapphire crystal glass
- Power reserve indicator
- Countdown bezel, easy to read with to-the-second precision in time trials
- Pressure resistant to 10 bar (100 m water depth)
- Low pressure resistant


Technical Data
Model 917 GR

Movement:
- Valjoux 7750
- Self-winding mechanism
- 25 bearing jewels
- 28,800 semi-oscillations per hour
- Seconds stop function
- Shock resistant as per DIN 8308
- Anti-magnetic as per DIN 8309

Case:
- Case made of stainless steel, polished
- Sapphire crystal glass in front, anti-reflective on both sides
- Transparent case back made of sapphire crystal glass, anti-reflective on the interior
- Case back screw-fastened
- Crown screwable
- Water-resistant as per DIN 8310
- Pressure resistant up to 10 bar (= 100 m water depth)
- Low pressure resistant

Functions:
- Hours, minutes, subsidiary seconds
- Date display
- Power reserve indicator
- Chronograph
- Countdown bezel, easy to read with to-the-second precision in time trials

SINN Technologies:
- Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging

Measurements:
- Case diameter 44 mm
- Lug width 22 mm

Guarantee:
- 3 years

Strap:
Leather or bracelet