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.


Families


Current Listings

[WTS] Sinn 556. Box, Tools.

Sinn 556. Box, Tools.

Sinn - 556 · $1,195
Hello All - I am putting for sale a Sinn 556 with box and tools.

  • Shipping method: Fedex with insurance
  • Shipping locations: Worldwide
Posted at
Dec 16, 2025, 3:21 PM
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[WTS] Sinn 103 Classic 12 LE out of 600 made

Sinn 103 Classic 12 LE out of 600 made

Sinn - 103 Classic 12 · $3,950
This is a limited edition of 600 Sinn 103 Classic 12 watches, considered one of the most beautiful Sinns made.

  • Condition: mint
  • Limited edition quantity: 600
Posted at
Dec 16, 2025, 12:49 AM
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[WTS] Sinn 144 St Sa PRICE DROP $1675

Sinn 144 St Sa PRICE DROP $1675

Sinn - 144 St Sa · $1,675
This Sinn 144 St Sa is a nearly new classic watch that has been worn only a couple of times since its purchase in April 2019. It comes with its original box and papers.

  • Condition: Excellent, basically unused with one small polish mark on the clasp
  • Year Bought: 2019
  • Box And Papers: Included
Posted at
Dec 15, 2025, 3:17 PM
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[WTS] Sinn 857

Sinn 857

Sinn - 857 · $1,600
Selling a Sinn 857 DLC that was only worn once and is in great shape with no visible marks. It comes with the inner/outer box, extra links, and the tool.

  • Condition: Excellent
Posted at
Dec 15, 2025, 11:23 AM
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[WTS] Sinn U50 - Mother of Pearl

Sinn U50 - Mother of Pearl

Sinn - U50 · $3,750
This listing is for a Sinn U50 Mother of Pearl diver's watch, featuring Sinn's tegimenting technology and a range of included accessories.

  • Condition: Pre-owned with minimal wear
  • Depth rating: 200m
  • Water resistance: water resistant
  • Warranty: includes warranty card
Posted at
Dec 14, 2025, 11:12 AM
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[WTS] Sinn T1B on bracelet & rubber strap | fantastic condition | keeps great time | rare | asking $4250

Sinn T1B on bracelet & rubber strap | fantastic condition | keeps great time | rare | asking $4250

Sinn - T1B · $4,250
A Sinn T1B watch with a like new bracelet, rubber strap, and clasp, in excellent shape, suitable for everyday wear.

  • Condition: Fantastic condition, like new
  • Bracelet: On bracelet and rubber strap with clasp
  • Wrist size: 8-1/4 inches
  • Shipping cost (conus): $25
Posted at
Dec 14, 2025, 11:07 AM
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[wtt] [wts] Sinn u50 SDR dive watch in excellent condition $2100

[wtt] Sinn u50 SDR dive watch in excellent condition $2100

Sinn - u50 SDR · $2,100
A Sinn u50 SDR dive watch in excellent condition, fitted to a 6.75 inch wrist with an extra link.

  • Condition: excellent condition
  • Wrist Size: 6.75 inches
  • Links Supplied: 1 extra link
Posted at
Dec 13, 2025, 2:27 PM
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[WTS] Sinn 144 Titanium Diapal reference 144.078

Sinn 144 Titanium Diapal reference 144.078

Sinn - 144.078 · $2,200
The Sinn 144 Titanium Diapal is a highly functional watch featuring Ar-Dehumidifying Technology and a DIAPAL lubricant-free anchor escapement.

  • Case material: titanium
  • Depth rating: 200m water depth
  • Thickness: 14.5mm
Posted at
Dec 13, 2025, 10:53 AM
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[WTS] Sinn / Audi Design “Circle,” ref. 9901.040 36mm

Sinn / Audi Design “Circle,” ref. 9901.040 36mm

Sinn - 9901.040 · $1,175
A Sinn watch in collaboration with Audi Design, featuring a 36mm diameter case and 10.5mm thickness.

  • Condition: Good with one notable scuffed area on the bezel near the 11 o'clock
  • Case Diameter: 36mm
  • Thickness: 10.5mm
  • Band Type: Original leather band
Posted at
Dec 13, 2025, 8:52 AM
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