====== Sinn 103 St ======
{{wst>image_r|Sinn_103_St|Sinn 103 St}}
{{wst>image_r|Sinn_103_St_Ty|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]].


<WRAP ud ud_mod>

**Movement:**
  * [[Self-winding]] movement [[Valjoux 7750]], 28,800 A/h
  * 25 [[jewels]]

**Case:**
  * [[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

**Dial:**
  * Black dial
  * Hands and numerals with highest luminosity

**Bracelet:**
  * Solid [[stainless steel]] bracelet with extension or dark brown or black leather strap
</WRAP>

{{tag>Watch_models Chronographs Sinn_Pilot's_Watch_models Sinn_Instrument_Chronograph_models}}