- Case made of stainless steel, polished / satinized
- Sapphire crystal glass
- Transparent case back made of sapphire crystal glass
- Interior bezel with logarithmic scale and slide rule function
- Black electroplated dial, UV resistant
- Pressure-resistant to 10 bar
- Low pressure resistant
903 St Schwarz
2.690,00 €
*
In addition to the fascinating variety of features, Model 903 has long been renowned for its meticulously designed dial. Watch connoisseurs appreciate the fine details as well as the impressive clarity in the how the functions are arranged.
The dial of this timepiece series is one of the most difficult to produce, with over 30 separate steps involved. To ensure that it retains its rich contrast and colorfastness, it is galvanized with black nickel coating.
Thanks to the proven high grade automatic movement, the 903 remains both durable and reliable. In contrast to the classic Valjoux design, we have arranged the minute and second counters as well as the small second second counter at 3, 6 and 9 o'clock. The date display is located at 4:30.
An eye-catching feature of the 903 is the additional crown at 10 o'clock. This is used to rotate the slide-rule ring around the outer edge of the dial. With this high-quality navigation chronograph, you can perform multiplication and division, calculate proportions and do various conversions.
Special characteristics
Technical details
Movement
SW 500
Self-winding mechanism
26 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
Anti-magnetic as per DIN 8309
Self-winding mechanism
26 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
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 / satinized
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
Winding crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 10 bar
Low pressure resistant
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
Winding crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 10 bar
Low pressure resistant
Functions
Hours, minutes, subsidiary seconds
Date display
Chronograph
Interior rotating bezel with logarithmic scale (slide-rule function)
Date display
Chronograph
Interior rotating bezel with logarithmic scale (slide-rule function)
Dimensions and Weight
Case diameter: 41 mm
Band lug width: 22 mm
Case thickness: 14,5 mm
Weight without strap: 88 gramme
Band lug width: 22 mm
Case thickness: 14,5 mm
Weight without strap: 88 gramme
Dial and Hands
Black electroplated dial
Number “12” and indices coated with luminescent colour
Hour and minute hand coated with luminescent colour
Number “12” and indices coated with luminescent colour
Hour and minute hand coated with luminescent colour
