Sinn 657

From Grail Watch Wiki
Revision as of 15:23, 23 July 2021 by Sfoskett (talk | contribs) (1 revision imported)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
File:Sinn 657.jpg
Sinn 657
File:Sinn 657 S.jpg
Sinn 657 S

Model 657 is a pilot's watch by Sinn produced from 2005 through 2012.


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.

Model 657 was a companion model to the existing model 656. The primary difference was a larger case and the addition of the rotating bezel. A "Pilot" model was added in December 2005, though it was not much different from the other models. The model 657 was retired from the catalog in 2012, leaving the larger Sinn 857 to take its place.


  • 657 (2005-2012)
  • 657 PILOT (2006-2007)
  • 657 S (2008-2011)


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


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


Hours, minutes, seconds, date


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


Leather or metal bracelet


2 years