- Case made of stainless steel, polished
- Diver's bezel with minute ratcheting
- Sapphire crystal glass
- Solid back (transparent back made of sapphire crystal optional)
- Pressure-resistant to 300 m diving depth (30 bar)
- Resistant to low pressure
203 St
Special characteristics
Technical details
Mechanical Movement
Valjoux 7750
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN 8308
Anti-magnetic as per DIN 8309
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN 8308
Anti-magnetic as per DIN 8309
The information on the mechanical movement corresponds to the current production situation in Frankfurt am Main. Due to technical changes, it may happen in individual cases that stock items of our sales partners deviate from this information.
Case
Case made of stainless steel, polished
Sapphire crystal glass in front, anti-reflective on both sides
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 30 bar (= 300 m water depth), 20 bar with transparent case back
Low pressure resistant
Sapphire crystal glass in front, anti-reflective on both sides
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 30 bar (= 300 m water depth), 20 bar with transparent case back
Low pressure resistant
Functions
Hours, minutes, subsidiary seconds
Date display
Day of the week display
Chronograph
Diver’s bezel with minute ratcheting and luminous key mark
Date display
Day of the week display
Chronograph
Diver’s bezel with minute ratcheting and luminous key mark
Dimensions and Weight
Case diameter: 41 mm
Band lug width: 20 mm
Case thickness: 16 mm
Weight without strap: 90 gramme
Band lug width: 20 mm
Case thickness: 16 mm
Weight without strap: 90 gramme
Dial and Hands
Matte black dial
Indices coated with luminescent colour
Hour and minute hand coated with luminescent colour
Indices coated with luminescent colour
Hour and minute hand coated with luminescent colour