In addition to a fascinating variety of features, the navigation chronograph 903 St B E boasts a functionally reliable dark blue dial with luminous ivory coated hands and indices. Watch lovers appreciate the attention to detail – and the impressive clarity in how the functions are arranged.

The chronograph also impresses those who enjoy performing analogue calculations with a classic slide rule. The positioning of an additional crown at 10 o’clock enables mathematical operations and is used to rotate the slide rule bezel with logarithmic scale. It also allows users to perform multiplication, division and cross-multiplication as well as other useful calculations such as fuel consumption, speed, distance and time. Additional watch features include a chronograph function for measuring and recording periods of time.

 

Special Characteristics

  • Case made of stainless steel, polished / satinized
  • Column wheel chronograph, exquisitley decorated
  • Sapphire crystal glass
  • Transparent case back made of sapphire crystal glass
  • Dark blue dial and luminous ivory coating
  • Interior bezel with logarithmic scale and slide rule function
  • Waterproof and pressure-resistant to 10 bar
  • Low pressure resistant

Sinn - 903 St B E - Brown Leather Strap options -903.045

£3,035.00Price
    • LJP 8000
    • Self-winding mechanism
    • 28 bearing jewels
    • 28,800 semi-oscillations per hour
    • Seconds stop function
    • Anti-magnetic as per DIN 8309