Sinn - 103 St

The models 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, which is equipped with a shock-resistance acrylic glass, is also available for an extra charge with a high-domed, scratch-resistance sapphire crystal glass with anti-reflective coating on both sides.

Mechanical Movement

• Concepto C99001
• 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
• Waterproof and pressure-resistant to 20 bar
• Low pressure resistant

Functions

• Hours, minutes, subsidiary seconds
• Date display
• Day of the week display
• Chronograph
• Pilot’s bezel with minute ratcheting and luminous key mark

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

• Case diameter: 41 mm
• Band lug width: 20 mm
• Case thickness: 15.5 mm
• Weight without strap: 74 gramme