Sinn 103 St

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File:Sinn 103 St.jpg
Sinn 103 St
File:Sinn 103 St Ty.jpg
Sinn 103 St Ty
Main Article: Sinn 103

The 103 St is a pilot's chronograph by Sinn.

Among the well-known and popular, because also very low-priced models of Sinn this model 103 St, called "der klassische Fliegerchronograph" (the classic aviator chronograph), can be counted. It has automatic winding, plexiglass, a high-gloss polished stainless steel case and optional solid bracelet or leather strap.

See also: Sinn 103 A Sa, Sinn 103 Ti Ar.


Self-winding movement Valjoux 7750, 28,800 A/h
25 jewels


Stainless steel, polished
D 41 mm, H 15.5 mm
Model 103 St: black pilot's bezel
Model 103 St Ty: inner tachymeter/pulsometer scale
Acrylic glass; for an additional charge: sapphire crystal with anti-glare treatment on both sides
Screw-in caseback; screw-in crown, double sealed
Waterproof to 200 m
Safe below atmospheric pressure


Black dial
Hands and numerals with highest luminosity


Solid stainless steel bracelet with extension or dark brown or black leather strap