Sinn Launches Limited Edition Anniversary Watch
The 300-piece chronograph marks the brand's 65th anniversary with moisture-resistant technology tested in space.
Updated on Oct. 26, 2026 in Space
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Sinn has launched the 140 A S Anniversary watch to mark its 65th year in business. This limited-edition chronograph, restricted to 300 units, is inspired by the Sinn 140 S worn by Reinhard Furrer during the 1985 D1 Spacelab mission.
Why it matters
The release commemorates the horological firm's 65-year history while showcasing technical features originally developed for space flight. It signals the brand's continued investment in specialized mechanical movements for high-stress environments.
The watch features a 44mm stainless steel case paired with the in-house Caliber SZ-01 movement beating at 4Hz. It offers a 42-hour power reserve and is priced at $6,980.
The players
Sinn
A German watch manufacturer known for integrating cockpit-instrument engineering into chronographs.
Reinhard Furrer
A German physicist and astronaut who famously tested Sinn's mechanical chronographs in microgravity.
The details
The watch utilizes an Ar-Dehumidifying technology, which employs a drying capsule to pull moisture from the case and protect the movement from fogging or corrosion. The external steel case undergoes a Tegiment treatment, a specialized process that hardens the metal to improve scratch resistance, followed by a black DLC (diamond-like carbon) coating for durability.
Timeline
Reinhard Furrer wore the Sinn 140 S during the 1985 D1 Spacelab mission.
The Sinn 140 A S Anniversary watch becomes available on October 26, 2026.
The Tech Race
This release positions Sinn within the competitive market for tool-grade chronographs used in aerospace history. It highlights a design trajectory that prioritizes case hardening and moisture resistance as standard features for precision timekeeping.
The Sinn 140 A S Anniversary is available for purchase starting October 26, 2026. Given the limited production of 300 pieces, potential owners should monitor the manufacturer's official retail channels for availability.
The takeaway
The watch represents a high-end collector piece that bridges vintage space-flight reliability with modern hardening materials. Collectors should track secondary market premiums to see how this limited 300-piece run compares to previous anniversary editions.
Further reading
Explore the history of Space instrumentation and its evolution in modern watchmaking.
Source note: This article includes information reported by Gear Patrol.
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