- Case made of stainless steel, satinized
- Second time zone on a 12-hour basis
- Sapphire crystal glass
- Transparent case back made of sapphire crystal glass
- Pressure-resistant to 10 bar
- Low pressure resistant
Shipping costs, taxes and customs duties
New watch deliveries are free of shipping costs within Germany. For delivery to European Union (EU) Member States, we charge EUR 80.00 and for deliveries to all other countries we charge EUR 120.00 shipping costs. For bracelets and accessories we charge EUR 6.50 within Germany, EUR 30.00 to European Union (EU) Member States and EUR 50.00 to all other countries.
Shipping costs for service and spare parts can be found in the service price list.
For deliveries within the European Union (EU), the VAT rate of the supplier country is charged. Deliveries outside the EU are shipped VAT-free.
For deliveries outside the EU, additional customs duties and fees may apply. Please check the relevant customs regulations with the respective customs authorities.
We have made sophisticated refinements to the models in our 356 series, which are designated by the suffix Sa.
The tastefully dimensioned case with a diameter of 38.5 mm has a fine satinized finish and gives an impression of high-quality, elegant functionality. Connoisseurs will immediately notice another subtle detail: the high-domed sapphire crystal glass used in the series has the same profile as the acrylic glass in the basic model. This sophistication has its price: in a complex process, the glass must be ground out of a solid blank with a thickness of five millimeters, with five different radii of curvature. The result not only preserves the classic look of these pilot's chronographs, but the glass is also more solid, stronger and more resistant than a simple, flat-ground alternative.
The anti-reflective coating on both sides facilitates accurate reading of the distinctively designed dial even under extreme lighting conditions. We have also enhanced the back of the watch: a sapphire crystal glass back affords a fascinating view of the interior. This is intentional, as the movement has been exquisitely decorated with a tasteful finish and blued screws.
![](https://www.sinn.de/out/pictures/generated/product/11/640_360_100/sinn_356sa_utc_k.jpg)
Technical details
Self-winding mechanism
25 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
Anti-magnetic as per DIN 8309
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.
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
Pressure-resistant up to 10 bar
Low pressure resistant
Second time zone on a 12-hour basis
Date display
Chronograph
Band lug width: 20 mm
Case thickness: 15 mm
Weight without strap: 75 gramme
Numbers and indices coated with luminescent colour
Hour, minute and stopwatch second hand coated with luminescent colour