103 St Sa

The pilot watches in Sinn's 103 series make it instantly clear what these timepieces were created for: uncompromising functionality. Following company tradition, the design of these watches reminds one of the instruments in an airplane cockpit. After all, the first timepieces by the company's founder were mechanical airplane cockpit clocks for professional use. Model 103 St Sa is equipped with a high-domed, scratch-resistance sapphire crystal glass with anti-reflective coating on both sides and has a transparent back made of sapphire crystal glass.Hour hand, minute hand and stopwatch second hand coated with luminescent colour

Valjoux 7750
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309
Case
Case made of stainless steel, polished
Acrylic glass in front
Case back screw-fastened
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar
Low pressure resistant
Functions
Hours, minutes, subsidiary seconds
Date display
Day of the week display
Chronograph
Pilot’s bezel with luminous key mark
Dimensions and Weight
Case diameter: 41 mm
Band lug width: 20 mm
Case thickness: 15,5 mm
Weight without strap: 74 gr
Dial and Hands
Matte black dial
Numbers and indices coated with luminescent colour
Hour hand, minute hand and stopwatch second hand coated with luminescent colour