140 St
The zero-gravity Sinn — a chronograph with a spaceflight proof point.
Prices are a snapshot from when this page was built — confirm on the retailer's site.
Story & heritage
The 140 is one of Sinn’s most historically charged chronographs. The brand history records that German physicist and astronaut Reinhard Furrer wore a 140 S during the Spacelab D1 mission in 1985, proving that a mechanical automatic Sinn watch could work in zero gravity.
Today’s 140 St keeps that space-chronograph identity while using Sinn’s modern chronograph architecture and hardened case technology.
Materials & craft
Sinn’s current 140 St is a 44 mm chronograph with the SZ01 automatic calibre, a case made with TEGIMENT technology, a mission-timer style central chronograph minute display, sapphire crystal, Ar-Dehumidifying Technology and resistance to low pressure.
How to choose & style
Treat it like a technical object rather than a dress chronograph. Its tonneau case has real wrist presence, so the cleaner strap option focuses the shape; the bracelet leans fully into the instrument-watch mood.
