SINN Ref. 105 St Sa W SW 220-1 self-winding caliber 41mm 20ATM

The 105 St Sa W 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 white 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
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. (further Information)

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
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
Functions
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
Dimensions and Weight
Case diameter: 41 mm
Band lug width: 20 mm
Case thickness: 11.9 mm
Weight without strap: 73 gramme
Dial and Hands
Matt white dial
Indices coated with luminescent colour
Hour, minute and second hand coated with luminescent colour
Warranty
Warranty period 2 years

*TEGIMENT

Greatly increased scratch-resistance thanks to surface hardening
TEGIMENT Technology raises the hardness level of the base material, e.g. stainless steel, by a significant factor. The technology was first introduced in the 756 Duochronograph at the International Baselworld Watch and Jewellery Show in Basel in 2003, replacing the ice hardening technique for nickel-free watch cases first presented in 2002. Originally TEGIMENT Technology was only used on stainless steel cases. The term is now used to refer to all materials with a hardened surface.

TEGIMENT Technology provides highly effective protection against scratches. The method is not, however, based on the application of a coating. Instead it is the surface of the material itself which is hardened by means of a special process, thereby creating a protective layer ("tegimentum" in Latin). The surface of any watch hardened using TEGIMENT Technology has a significantly greater level of protection against scratches than that afforded by the hardness of the base material.