
27
Mechanical Movement
• calibre valjoux 7750
• Self-winding mechanism
• 25 bearing jewels
• Seconds stop function
• 28,800 semi-oscillations per hour
• Shock-resistant as per din 8308
• anti-magnetic as per din 8309
Watch Case
• Stainless steel polished
• Shock-proof acrylic glass on front
(Sapphire crystal optionally)
• Stainless steel back, screw-fastened
• crown screwable
• water-resistant as per din 8310
• water-resistant and pressure resistant up
to 20 bar (= 200 m underwater depth)
• resistant to low pressure at high flight
altitudes
• Band lug width 20 mm
• case diameter 41 mm
Functions
• hours, minutes, subsidiary seconds
• chronograph
• date display
• day of the week display
• pilot's bezel with luminous key mark
• hands and numbers coated with
luminescent colour
technical detailS 103 St