- Limited to 300 pieces
- Shimmering mother-of-pearl dial
- Case and crown made of high-strength seawater-resistant German Submarine Steel
- Tested based on European diving equipment standards and certified by DNV
- Waterproof and pressure-resistant to 1,000 m (= 100 bar), certified by DNV
- Captive diver’s bezel with minute ratcheting
- Black Hard Coating on a TEGIMENT Technology basis
- Crown at 4 o’clock to prevent pressure on the back of the hand
- Sapphire crystal glass
- 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.
Without question, it is the shimmering mother-of-pearl on the U1 S Mother-of-Pearl S – limited to 300 pieces – that makes the dial and the entire watch so striking, in part because this natural product goes so well with the high-quality Black Hard Coating. The result of this successful collaboration is a timepiece with a unique, technical appeal that is a joy to wear each and every day.
In addition to its striking design and minimalist display, the U1 S Mother-of-Pearl S is a high-quality timepiece that is also very suitable for everyday use. For example, the case and crown are made from high-strength seawater-resistant German Submarine Steel. Experts will recognise immediately that this timepiece is not only extremely resistant to seawater, but is also highly non-magnetic. The diver’s bezel with minute ratcheting has a captive connection to the case, so impacts are absorbed with ease, making it exceptionally durable. The positioning of the crown at 4 o’clock prevents pressure on the back of the hand, even during physically exerting activities.
By meticulously testing the U1 S Mother-of-Pearl S, DNV demonstrated its outstanding reliability for all to see. Pressure resistance was verified and certified to a diving depth of 1,000 metres (= 100 bar), as was temperature resistance functionality in accordance with the European diving equipment standards.
![](https://www.sinn.de/out/pictures/generated/product/11/640_360_100/sinn_u1_s_ps_k.jpg)
Technical details
Self-winding mechanism
26 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
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
Case back screw-fastened
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Waterproof and pressure-resistant to 1,000 m diving depth (= 100 bar), certified by
DNV
According to the technical demands for the diving norm DIN 8306
Tested based on European diving equipment standards EN 250 / EN14143 and certified by DNV
Low pressure resistant
Date display
Diver’s bezel with minute ratcheting and luminous key mark
Captive bezel
Band lug width: 22 mm
Case thickness: 14.7 mm
Weight without strap: 113 gramme
Indices coated with luminescent colour
Hour, minute and second hand coated with luminescent colour