Sinn 657

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Sinn 657
Sinn 657 S

Instrument watch by Sinn

Pilot's watch with non-detachable rotating bezel, which convinces by the clear appearance and the easy to read dial. It also has some interesting technical features such as magnetic field protection or high water resistance.

Movement:

Mechanical movement (ETA 2824-2), 28,800 A/h
Automatic
Magnetic field protection up to 80.000 A/m
Shock proof according to DIN 8308

Case:

Stainless steel / black chroming
Ø 40.0 mm, height 12.0 mm
Sapphire crystal with anti-glare treatment on both sides
Non-detachable bidirectional rotating bezel
Nickel-free caseback, screwed
Screw-in crown with double O-ring seal
Waterproof to 200 m
Safe below atmospheric pressure

Functions:

Hours, minutes, seconds, date

Dial:

Black, high-gloss polished
Hour indizes and hands coated with superluminova

Bracelet:

Leather or metal bracelet

Warranty:

2 years