- Limited edition to 500 units
- Case made of stainless steel, polished
- Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
- Captive pilot's bezel with minute ratcheting
- Sapphire crystal glass
- Transparent back made of sapphire crystal glass
- Pressure-resistant to 20 bar
- Low pressure resistant
When our company was founded in 1961 it concentrated mainly on producing pilot's chronographs and navigation cockpit clocks. An early classic, and one which is still in our range today, is the 103 series. We have produced the 103 CLASSIC in a limited edition of just 500 timepieces. Based on the legendary 103 A, it features the aesthetically balanced, V-shaped Tri-Compax arrangement of counters.
The styling is modelled on that of its classic predecessor, however the state-of-the-art technologies are up to the very latest SINN standards. The 103 Classic has a captive pilot's bezel with minute ratcheting and Ar-Dehumidifying Technology to prevent fogging and increase functional reliability. The face covering is made of sapphire crystal. The 103 CLASSIC is high-altitude resistant and can withstand pressures of up to 20 bar.

Technical details
Self-winding mechanism
27 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
Anti-magnetic as per DIN 8309
Sapphire crystal glass in front, anti-reflective on both sides
Transparent case back made of sapphire crystal glass, anti-reflective on the interior
Case back screw-fastened
Crown screwable
Push-pieces screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar
Low pressure resistant
Date display
Chronograph
Pilot’s bezel with minute ratcheting and luminous key mark
Captive safety bezel
Band lug width: 20 mm
Case thickness: 17 mm
Weight without strap: 88 gramme
Silver electroplated counters
Indices coated with luminescent colour
Hour, minute and stopwatch second hand coated with luminescent colour