Click to inspect
Sinn U1 S L
Ref. U1 S L · Diver
Case
- Diameter
- 44mm
- Thickness
- 14.7mm
- Lug width
- 22mm
- Material
- Stainless Steel
- Finish
- black
- Water resistance
- 1000m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Underside
- Dial colour
- Black
- Lume
- Luminescent
Movement
- Caliber
- Sellita SW200-1
- Type
- Automatic
- Beat rate
- 28,800 vph
- Power reserve
- 38h
- Jewels
- 26
- Hacking
- No
- Hand-winding
- No
- Complications
- Time only
Sellita
Sellita's flagship automatic movement and the most widely used Swiss automatic caliber in production today, having filled the supply gap created by ETA's restrictions on third-party sales. A functional clone of the ETA 2824-2, it is dimensionally identical and shares the same parts compatibility. Available in multiple grades from Standard to Top, the SW200-1 powers watches from dozens of Swiss and international brands.
Design language
- Case shape
- round
- Dial style
- standard
- Bezel
- rotating_unidirectional
- Bracelet
- rubber_strap
AI-detected from the product image
11 colorways
The living market
This one moves.
It is on r/Watchexchange and WatchUSeek right now, and finding it means searching both by hand. Not appraisals or offers.
The connection engine
More like this.
The community take
Owners talk.
The Sinn U1 S L is widely praised for its intense, full-lume dial, a feature described as new technology that glows brightly, and its unique black and white "arctic tactical" aesthetic. Owners and reviewers consistently highlight the Tegimented German submarine steel case for its exceptional scratch resistance and matte, non-reflective finish, with one owner reporting no scratches on the case after 17 years. The watch is also noted for its legibility and robust build, offering 1000m water resistance. However, some owners find the 44mm size and 14.7mm thickness wear large, and one reviewer noted the 4 o'clock crown positions lacked distinct clicks, leading to difficult date changes. Accuracy figures for the ETA 2824-2 movement vary, with one owner seeing +1/+2 s/day and another about -6 s/day. The Tegimented bracelet is reported to scratch more easily than the case by some, while others found it held up well.
Open the discussion
On real wrists
No shots yet. Show how it wears.
The paper trail
The discussion