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
37
Listings

Families

Classic Timepieces

Diving Watches

Frankfurt Financial District

Instrument Chronographs

Instrument Watches

Ladies Watches

Special Edition

Current Listings

[WTS] Sinn 105, 41mm, Great Condition

Sinn 105, 41mm, Great Condition

Sinn - 105 ST SA 105.010 路 $1,550
This Sinn 105 watch is a 41mm timepiece that has been professionally refinished and comes in great condition with minimal signs of use.

  • Condition: great condition, minimal signs of use
  • Size: 41mm
  • Kit: full kit minus warranty card
Posted at
Apr 28, 2026, 8:40 PM
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[WTS] Sinn U50-T S Black on quick adj bracelet

Sinn U50-T S Black on quick adj bracelet

Sinn - U50-T S 路 $3,850
A Sinn U50-T S Black fully tegimented watch on an H-Link quick adjust bracelet features automatic mechanical movement and 500m water resistance.

  • Condition: Like new
  • Case diameter: 41.0mm
  • Case height: 11.2mm
  • Lug width: 20mm
Posted at
Apr 28, 2026, 6:55 PM
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[WTS] Sinn 104 | St Sa Black - Full Kit 2021 - Dassari black sailcloth strap + Sinn brown leather strap - Excellent condition - $1250

Sinn 104 | St Sa Black - Full Kit 2021 - Dassari black sailcloth strap + Sinn brown leather strap - Excellent condition - $1250

Sinn - 104 St Sa I Black 路 $1,250
The Sinn 104 is a versatile, durable, and comfortable watch that works well with casual attire. It's incredibly easy to wear and has been mostly used as a desk diver.

  • Condition: Excellent
  • Movement: Sellita SW220-1 (day/date)
  • Water resistance: 200m
  • Case diameter: 41mm
Posted at
Apr 28, 2026, 6:07 PM
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[WTS] Sinn 103 St Sa Chronograph - H Link bracelet, Box, Card [馃嚜馃嚭]

Sinn 103 St Sa Chronograph - H Link bracelet, Box, Card [馃嚜馃嚭]

Sinn - 103 St Sa 路 $1,575
A Sinn 103 St Sa pilot chronograph with day-date complication featuring a stainless steel case and black dial. The watch includes original straps and comes in double box set.

  • Condition: very good with minor cosmetic wear
  • Case diameter: 41mm
  • Movement type: Automatic mechanical chronograph (Valjoux 7750-based)
  • Water resistance depth rating: 200m
Posted at
Apr 27, 2026, 1:22 PM
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[WTS] Sinn 556 iRS Full Set

Sinn 556 iRS Full Set

Sinn - 556 iRS 路 $1,000
A Sinn 556 iRS with a stainless steel H-link bracelet, serving as the daily companion through its owner's most challenging yet rewarding year. The red seconds hand acted as a reminder to keep moving forward in difficult times.

  • Condition: Great shape
  • Bracelet: Stainless steel H-link
  • Size: 38.5mm
Posted at
Apr 27, 2026, 9:48 AM
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[WTS] Sinn Steel Reef On The Fly Quick Adjust H Link.

Sinn Steel Reef On The Fly Quick Adjust H Link.

Sinn - Steel Reef On The Fly Quick Adjust H Link 路 $150
For sale is the On The Fly Extension link for the Sinn H link bracelet, designed to fix the lack of an adjustable bracelet with instant, tool-free 卤5 mm adjustment.

  • Condition: Used (only tried on for a limited time)
  • Adjustment range: 卤5mm
  • Shipping location: Netherlands
Posted at
Apr 27, 2026, 7:41 AM
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[WTS] SINN 556I, new clasp

SINN 556I, new clasp

Sinn - 556I 路 $1,200
This Sinn 556i is a beautiful watch dated 2021, featuring a gold rotor and new clasp with on the fly micro adjust.

  • Condition: Good used condition with some wear
  • Wrist size compatibility: 6.5 inch/17cm with extra links
  • Clasp type: New clasp with on the fly micro adjust
Posted at
Apr 27, 2026, 7:37 AM
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[WTS] Sinn 105 St Sa

Sinn 105 St Sa

Sinn - 105 St Sa 路 $1,550
A tool watch known for its reliability and good looks.

  • Condition: Excellent, with minor scratches on clasp and crystal
Posted at
Apr 26, 2026, 2:06 PM
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[WTS] Sinn EZM3 black DLC $2500

Sinn EZM3 black DLC $2500

Sinn - EZM3 路 $2,500
This Sinn EZM3 black DLC is a tegimented dive watch with an automatic mechanical movement and features such as 500m water resistance, sapphire crystal, and a solid case back.

  • Water resistance: 500m depth rating
  • Case diameter: 41mm
  • Height: 12.3mm
Posted at
Apr 26, 2026, 11:05 AM
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