- Completely made of high-strength seawater-resistant German Submarine Steel
- Tested based on European diving equipment standards and certified by DNV GL
- SINN SZ 02 movement with a 60-second scale for the stopwatch minute
- Case made with Black Hard Coating on a TEGIMENT Technology basis
- Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
- Functionally reliable from –45°C up to +80°C
- Captive Safety Diver's Bezel with guard to prevent accidental misadjustment
- Crown and push-pieces on the left side of the case to prevent pressure on the back of the hand
- Flat, non-screwable, large-format push-pieces ensure that chronograph functions can be triggered properly even when the user is wearing diving gloves
- Its design guarantees this to a nominal pressure of 100 bar
- Special sealing of push-pieces and crown
- Mission timer design for optimal readability
- Sapphire crystal glass
- Pressure-resistant to 1,000 m diving depth (100 bar), certified by DNV GL
- Low pressure resistant
The U1000 is the superlative diving chronograph with a distinctive character. A watch with very special characteristics and high-tech features not found anywhere else.
All our watch designs adhere to the principle that “form follows function”, and the U1000 is no exception, with an imposing appearance that underscores its robustness and functional reliability. These are indispensable characteristics for anyone with the highest expectations of suitability for everyday use for a personal safety system under extreme diving and usage conditions.

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
Case back screw-fastened
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 100 bar, certified by DNV GL
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 GL
Low pressure resistant
Date display
Chronograph with 60-minute stopwatch display
Diver’s bezel with minute ratcheting and luminous key mark
Black Hard Coating on a TEGIMENT Technology basis
Captive safety bezel
Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
Temperature Resistance Technology, therefore functionally reliable at temperatures from -45°C up to +80°C
Push-pieces and crown with D3-System
Band lug width: 22 mm
Case thickness: 18 mm
Weight without strap: 135 gramme
Indices coated with luminescent colour
Hour, minute and second hand coated with luminescent colour
Mission timer design for optimal readability