Model 103 A Sa

• Case made of stainless steel, polished
• Sapphire crystal glass
• Transparent back made of sapphire crystal glass
• Pressure-resistant to 20 bar (= 200 m water depth)
• Low pressure resistant

Print as PDF

Download operating manual

Which watches aren't designated as 'classics' these days? This valued label is applied to many timepieces. Yet very few really set standards of style in functional design and first-class technology. If this term were ever applicable to a watch, then most certainly to the Sinn model 103 A Sa. The chronograph features the Valjoux 7750 mechanical movement with automatic winding. The polished stainless steel case perfectly matches the classic style of the watch.

• Mechanical Movement
• • Valjoux 7750
  • Self-winding mechanism
  • 25 bearing jewels
  • 28,800 semi-oscillations per hour
  • Seconds stop function
  • Anti-magnetic as per DIN 8309

• Case
• • Case made of stainless steel, polished
  • 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

• Functions
• • Hours, minutes, subsidiary seconds
  • Date display
  • Day of the week display
  • Chronograph
  • Pilot’s bezel with minute ratcheting and luminous key mark

• SINN Technologies
• • Captive safety bezel

• Dimensions and Weight
• • Case diameter: 41 mm
  • Band lug width: 20 mm
  • Case thickness: 17 mm
  • Weight without strap: 88 gramme

• Dial and Hands
• • Matte black dial
  • Indices coated with luminescent colour
  • Hour, minute and stopwatch second hand coated with luminescent colour

• Warranty
• • Warranty period 2 years
    Our warranty conditions can be found in §12 of our General Terms and Conditions