Sinn

Founded in 1961 by flight instructor Helmut Sinn, the brand has established itself as a leader in professional tool watches. Their innovations include oil-filled cases for perfect underwater legibility and Tegiment technology for enhanced scratch resistance. The brand's expertise spans from pilot chronographs to professional diving watches, with collections like the U-series and 756/956 demonstrating their technical prowess. Each timepiece showcases their commitment to creating robust, functional instruments that meet the highest professional standards.

155
Watches
7
Families
38
Listings

Families

Classic Timepieces

Diving Watches

Frankfurt Financial District

Instrument Chronographs

Instrument Watches

Ladies Watches

Special Edition

Current Listings

FSO: Sinn 903 St HB Limited Edition

FSO: Sinn 903 St HB Limited Edition

Sinn - 903 St HB Limited Edition · $3,800.004
This Sinn 903 St HB Limited Edition is a unique timepiece with a mixed case finish, featuring a transparent case back and sapphire crystal. It has a stainless steel case and automatic mechanical movement powered by the La Joux-Perret L110 calibre.

  • Condition: Excellent with small scratches on clasp and lugs
  • Diameter: 41mm
  • Height: 14.5mm
  • Lug width: 22mm
Posted at
Apr 30, 2025, 7:18 PM
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Sinn Fine Link Bracelet 556/356 Satinized

Sinn Fine Link Bracelet 556/356 Satinized

Sinn - 556/356 Satinized · $360.004
This Sinn Fine Link Bracelet is a used item with minimal wear and some light scratches. It features the newer design with allen keys and comes with a full kit and two half links.

  • Condition: Used, minimal wear
  • Bracelet type: fine link
  • Kit included: full
  • Additional links: 2 half links
Posted at
Apr 30, 2025, 11:19 AM
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[WTS] Sinn Space Chrono (Ref. 142)

Sinn Space Chrono (Ref. 142)

Sinn - 142 · $2,249
This Sinn Space Chrono features a 43mm case and is powered by the Lemania 5100 movement. The matte black dial has excellent condition hands and markers with matching patina.

  • Condition: Excellent condition with minor marks and scratches
  • Movement: Lemania 5100
  • Case diameter: 43mm
  • Lug to lug: 45mm
Posted at
Apr 29, 2025, 9:43 PM
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[WTS] Sinn 556i Full Kit

Sinn 556i Full Kit

Sinn - 556i · $1,275
2019 Sinn 556i Full Kit for sale with tool, links, allen keys, box, and papers. The watch runs great and keeps excellent time.

  • Condition: like new
  • Depth rating: 200m
  • Diameter: 39mm
  • Crown type: screw down
Posted at
Apr 29, 2025, 12:24 PM
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Sinn U1 FULL TEGIMENT 1010

Sinn U1 FULL TEGIMENT 1010

Sinn - U1 1010 · $2,850.003
a Sinn U1 1010 watch with a tegiment finish, measuring 44mm in diameter.

  • Material base: non-steel (likely titanium or other non-magnetic metal)
  • Case size: 44mm
  • Box and papers included: true
Posted at
Apr 28, 2025, 8:32 PM
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[WTS] Sinn H Link Bracelet for 556 w/ extra links and link tools

Sinn H Link Bracelet for 556 w/ extra links and link tools

Sinn - H Link Bracelet for 556 · $215
Up for sale is an H link bracelet for the Sinn 556, which includes extra links and link tools.

  • Shipping: CONUS
  • Payment methods: Zelle preferred PayPal
Posted at
Apr 28, 2025, 7:55 PM
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Sinn U50 S L Limited Edition Full Lume Divers Watch COMPLETE

Sinn U50 S L Limited Edition Full Lume Divers Watch COMPLETE

Sinn - U50 S L · $4,199.004
The Sinn U50 S L is a limited edition diver's watch featuring full lume. It has been the owner's daily wear since August 2025, showing a slight gain of +2/s per day.

  • Condition: Pre-owned with minor wear (scratches and worn PVD coating on case and bracelet)
  • Included Accessories: bracelet, all original links, inner and outer boxes, paperwork
  • Bezel Action: still acceptable despite broken bezel spring prongs
Posted at
Apr 28, 2025, 2:47 AM
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[WTS] Sinn SZ-01 Automatik, Mint, Full Kit

Sinn SZ-01 Automatik, Mint, Full Kit

Sinn - SZ-01 Automatik · $4,250.004
The Sinn SZ-01 Automatik is a newly released tool watch with incredible build quality, perfect for any Sinn fan.

  • Condition: Mint
  • Bracelet type: on bracelet
Posted at
Apr 27, 2025, 12:57 PM
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[WTS] Sinn SZ-01 Automatik, full kit, mint

Sinn SZ-01 Automatik, full kit, mint

Sinn - SZ-01 · $4,250
The Sinn SZ-01 is a newly re-released tool watch with excellent build quality and capabilities, designed for Sinn fans.

  • Condition: Mint
  • Warranty: 2 years remaining
  • Purchase Location: WatchBuys (Authorized Dealer)
  • Shipping: FedEx insured (CONUS)
Posted at
Apr 27, 2025, 12:49 PM
Active
View listing on r/WatchExchange