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 556i Mother of Pearl - Unworn - $1700 + shipping CONUS

Sinn 556i Mother of Pearl - Unworn - $1700 + shipping CONUS

Sinn - 556i · $1,700
A Sinn 556i Mother of Pearl watch, like new and unworn.

  • Condition: Unworn
  • Status: First sale on this forum
Posted at
Dec 28, 2025, 10:10 AM
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[WTS] Sinn 556.0141 A RS

Sinn 556.0141 A RS

Sinn - 556.0141 A RS · $1,500
A Sinn 556.0141 A RS in good condition, with an uncle seiko bracelet and original rubber strap. It keeps great time.

  • Condition: Lightly used with light marks from daily use
  • Bracelet type: Uncle Seiko bracelet
  • Strap count: 2
  • Includes: Rubber strap and original rubber strap
Posted at
Dec 27, 2025, 3:25 PM
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[WTS] Sinn 856 Fully Tegiment

Sinn 856 Fully Tegiment

Sinn - 856 · $1,700
The Sinn 856 is a fully tegimented watch featuring a black dial with Arabic numerals, housed in a 40mm x 11mm case. It has a power reserve of 42 hours and water resistance up to 20 bar.

  • Condition: VG+ (very few signs of use)
  • Movement: Caliber 2892 automatic
  • Power reserve: 42 hours
  • Water resistance: 20 bar (200m depth rating)
Posted at
Dec 27, 2025, 1:09 PM
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[WTS] Sinn 104 Pilot Watch – Automatic – Full Set

Sinn 104 Pilot Watch – Automatic – Full Set

Sinn - 104 · $1,299
The Sinn 104 is a versatile pilot-style watch with a simple and durable design. It has a 41mm stainless steel case with a bi-directional captive bezel, making it practical for everyday use.

  • Condition: Very good used condition
  • Case size: 41mm diameter
  • Water resistance: 200m depth rating
  • Movement: Sellita SW220-1 automatic
Posted at
Dec 27, 2025, 12:39 PM
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[WTS] Sinn 356 BEAMS 45th Limited - *1 of 100*

Sinn 356 BEAMS 45th Limited - *1 of 100*

This is the Sinn 356 Chrono BEAMS, one of only 100 units made in Japan to commemorate the 45th anniversary. It comes with a full set including cards, boxes, tools, calfskin strap, and all links.

  • Condition: Great condition, very few hairlines or marks
  • Production run: 1 of 100
  • Region of production: Japan Only
Posted at
Dec 27, 2025, 12:33 PM
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[WTS] Sinn 556. Automatic. $1150.

Sinn 556. Automatic. $1150.

Sinn - 556 · $1,150
A Sinn 556 automatic watch is being sold, complete with its box and tools.

  • Shipping: Fedex with insurance, worldwide
  • Box And Tools: yes
Posted at
Dec 27, 2025, 12:13 PM
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[WTS] Sinn 356 Flieger 2025 Full Kit with new Quick Adjust Clasp

Sinn 356 Flieger 2025 Full Kit with new Quick Adjust Clasp

Sinn - 356 Flieger 2025 · $2,000
A Sinn 356 Flieger 2025 in mint condition with a full kit including the new quick adjust bracelet clasp. The watch has zero marks on the back of the lugs and runs great, but is running fast at +13/day.

  • Condition: Mint condition, some surface level marks on the clasp and bracelet
  • Clasp type: Quick Adjust Clasp
  • Caseback material: Solid
Posted at
Dec 27, 2025, 11:56 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 · $975
Sinn / Audi Design 'Circle' watch in good condition, running well, comes with various accessories and original leather band.

  • Condition: Good, with one notable scuffed area on the bezel near the 11 o'clock
  • Band material: Leather
  • Movement status: Running well
Posted at
Dec 27, 2025, 9:40 AM
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[WTS] Sinn 103 B SA

Sinn 103 B SA

Sinn - 103 B SA · $2,100
The Sinn 103 B SA is a high-quality watch with a bracelet. It is a very good condition timepiece.

  • Bracelet: included
Posted at
Dec 26, 2025, 4:12 AM
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