It’s obvious at a glance what the 103 model series was created for: uncompromising functionality. They are designed to resemble cockpit instruments, in keeping with Sinn’s company tradition. After all, the first watches Sinn produced were mechanical aviation clocks for professional use. The patented technologies they have developed over the years are now also part of these classic SINN watches. For example, the 103 Ti DIAPAL and 103 St DIAPAL models feature a lubricant-free escapement (DIAPAL Technology).
Sinn uses special combinations of materials that create no friction, even without lubrication, thus ensuring the long-term accuracy of the movement. To perfect the technical design, both models are equipped with Ar-Dehumidifying Technology. The movement is embedded in an environment that is almost completely dry. This reduces aging and prevents the crystal from fogging when exposed to sudden cold, and ensures reliable functionality and accuracy for a longer period of time. If you are looking for a traditional pilot’s chronograph equipped with a second time zone and the latest technology, you will appreciate these models.
Technical Data Model 103 St UTC Diapal
Case material: Stainless steel
Band: Choose below
Base movement: Valjoux 7750 GMT
Movement winding: Automatic
Crystal: Sapphire – anti reflective on both sides
Case back: Sapphire – anti reflective on both sides
Water pressure resistance: 20 bar / 200 m
Case diameter: 41.0 mm
Watch height: 16.5 mm
Weight without band: 88 g
- DIAPAL technology
- Ar dehumidifying technology
- Second time zone
The models in Sinn’s 103 series make it instantly clear what these timepieces were created for: uncompromising functionality. Following company tradition, the design of these watches reminds one of the instruments in an airplane cockpit. After all, the first timepieces by the company’s founder were mechanical airplane cockpit clocks for professional use.
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