Sinn 105 St Sa UTC Black 105.020 B
105 St Sa UTC Black
A technical, sporty look complemented by a diverse range of functions: with this watch, we’ve managed to combine uncompromising function and high-quality design in a whole new way. It’s not only the reduced, contemporary form that wins over watch experts, but also the fact that the timepiece can be used as a versatile instrument.
Using the bidirectional rotating bezel with 24-hour ratcheting, you can set up a second time zone. As a result, adjusting the local time only takes a few seconds, without you having to adjust the orange UTC hand using the crown. Of course, you can also set the UTC hand in the conventional way using the crown and leave the rotating bezel in its initial position. The arrow-shaped UTC hand can also be used to roughly determine cardinal points, when the current position of the sun is visible. If you’re located in the northern hemisphere, position the dial horizontally and turn the watch so that the 12-hour hand (ignoring daylight savings time) points to the sun. The 24-hour hand then points to the north.
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 dial with accents in orange. And take the time to have a closer look at all the details of the mechanical movement through the anti-reflective transparent case back made from sapphire crystal.
25 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
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
Rotating bezel with 24-hour ratcheting
Second time zone on a 24-hour basis
Bezel with Black Hard Coating on a TEGIMENT Technology basis
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 period 2 years
Additional Product Details
Sinn Watches was formed in 1961 by the legendary pilot and flight instructor Helmut Sinn. They began manufacturing flight watches based on his extensive aviation experience, this was primarily based on Mr. Sinn's dissatisfaction with the watches that were available for pilot and navigational purposes at that time. His own designs incorporated the features and functionality that he felt more fit for purpose as an instrument watch. This is a design philosophy that has transcended the company's culture right through to the present day. Sinn is now the world's most eminent manufacturer of high quality, precision, functional and purposeful instrument watches. From the beginning, their emphasis was on creating special purpose instruments that performed under extremely adverse operating conditions such as high speed, high and low pressures and altitudes, intense heat or pressure, extreme cold, high magnetic interference, and submergence in liquids. Sinn are becoming increasingly known for their instrument watches, and are today a force to be reckoned with as they lead the way in instrument watch design. The company changed hands in 1994 when Lothar Schmidt formerly of IWC assumed control and further expanded the boundaries of Sinn’s high tolerance manufacturing expertise. Over the past decade, Sinn has pioneered some innovative new technologies, including oil filled watch chambers to enable operation under extreme pressures, argon gas filled watches to prevent moisture infiltration, impact resistant gear suspensions, and new micro-lubricating techniques. Their timepieces are standard equipment in some of the most dangerous and adverse environments on earth - little surprise their watches are issued to the German military and elite forces. Above all the watches are manufactured and marketed to the world at large. Like the designs and their application areas, the pricing of the Sinn watches is most aggressive, making them available to most people. Due to distribution agreements Sinn watches can only be shipped to the UK and Ireland and certain countries where there is no Sinn agent assigned to that territory. Sinn watches are covered by a two or three year manufacturers warranty depending on the model.