Sinn - 105 St Sa


Strap Type

Product Details

The 105 St Sa combines uncompromising function and high-quality design in a whole new way. The timepiece boasts an impressive combination of technical, sporty design and a diverse range of functions. It’s not only the reduced, contemporary look which wins over watch experts, but also the multifunctional rotating bezel, which has shown itself to be a versatile special feature. The advancing minute scale on it allows you to measure time. Or you can use the bidirectional rotating bezel with 12-hour scale to set up a second time zone, with, for example, the hour hand showing the reference time on the dial and the local time on the rotating bezel. The rotating bezel itself has a captive connection to the bead-blasted case. Its Black Hard Coating on a TEGIMENT Technology basis lends the watch a professional overall look.

The dial comes in matt black with accents in orange. The day of the week and date display can appear in English or German. And beyond high-precision time measurement, you can also observe the refinements of the mechanical movement in great detail through the transparent case back made from sapphire crystal.

Mechanical Movement
  • SW 220-1
  • Self-winding mechanism
  • 26 bearing jewels
  • 28,800 semi-oscillations per hour
  • Seconds stop function
  • Anti-magnetic as per DIN 8309
  • Case made of stainless steel, bead-blasted
  • 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
  • Meet the technical requirements for waterproofness, as set out in standard DIN 8310
  • Waterproof and pressure-resistant to 20 bar
  • Low pressure resistant
  • Hours, minutes, seconds
  • Date display
  • Day of the week display
  • Bidirectional multifunctional rotating bezel with minute ratcheting and luminous key mark
  • Second time zone on a 12-hour basis
SINN Technologies
  • Bezel with Black Hard Coating on a TEGIMENT Technology basis
  • Captive bezel
Dial and Hands
  • Matte black dial
  • Indices coated with luminescent colour
  • Hour, minute and second hand coated with luminescent colour

  • Dimensions and Weight
  • Case diameter: 41 mm
  • Band lug width: 20 mm
  • Case thickness: 11.9 mm
  • Weight without strap: 73 gramme

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