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Sinn 140 St S
Ref. 140 St S · Tool
Case
- Diameter
- 44mm
- Thickness
- 15mm
- Lug width
- 22mm
- Material
- Stainless Steel
- Finish
- black
- Water resistance
- 100m
Crystal & dial
- Crystal
- Sapphire
- AR coating
- Underside
- Dial colour
- Black
- Lume
- Luminescent
Movement
- Caliber
- Sinn SZ01
- Type
- Automatic
- Beat rate
- 28,800 vph
- Power reserve
- 48h
- Jewels
- 28
- Hacking
- No
- Hand-winding
- No
- Complications
- Date, Chronograph, Pilot's Bezel
Design language
- Case shape
- round
- Dial style
- standard
- Sub-dials
- 2
- Bezel
- none
- Bracelet
- leather_strap
AI-detected from the product image
2 colorways
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The community take
Owners talk.
The Sinn 140 St S is praised for its functional tool watch design and space-flight heritage, incorporating a central chronograph minute hand and Ar-Dehumidifying Technology. Owners note the Tegimented hardened case and bracelet offer durability, with one reporting excellent condition despite minor marks. The 44mm size is considered wearable, though the SZ01 movement, based on the ETA 7750, has a rotor wobble that may not appeal to all. Overall, owners and reviewers value the Sinn 140 St S for its robust build and historical connection.
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