Sinn 303 M
Sinn 303 M km-h
Sinn 303 M-mph Silver
Sinn 303 (back)
The tachymeter of this chronograph is matched to a model railway. Thus, the speed of a fast model ICE can be measured as exact as that of a historic steam locomotive. A sympathetic additional function, that makes this watch an original and personal property of every true model railroader.
Variants With mph classification and date in the English language; with guilloché, galvanized silver dial.
Movement:
- Mechanical chronograph movement Valjoux 7750, 28.800 A/h
- Antimagnetic according to DIN 8309
- Shock proof according to DIN 8308
Case:
- Stainless steel bracelet, DIN material No. 1.4435, polished, tachymeter ring satin-finished
- Ø 41 mm, height 16.5 mm
- Sapphire crystal, with anti-glare treatment on the inside
- Sapphire crystal caseback with printing measured sections and standards
- (Optional ) Dehumidifying technology by filling the case with noble gas argon and patented dry capsule
- Screw-in crown with double o-ring gasket, with crown protection
- Pushers with double O-ring seal and pusher protection
- Waterproof to 200 m
- Safe below atmospheric pressure
Dial:
- Black mat or silber
- Guilloché and elaborate silver galvanised dial
- Indexes coated with special long-lasting, luminous paint, fine minute scale
- External tachymeter scale ring with colored engraving
Functions:
- Hours, minutes, small seconds with hacking seconds
- Date and day of week indication in German (km/h) or English (mph) at 3 o'clock
- Chronograph 12 hours counter, 30 minutes counter, 60 seconds counter
- Tachymeter scale for speeds (400 to 2 km/h or 250-1 mph)
Bracelet:
- Black Russia leather strap
- Variant with massive stainless steel bracelet and milled folding clasp and 30 mm overall extension
Warranty:
- 2 years (with Ar dehumidifying technology 3 years)