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.

50
Watches
7
Families
36
Listings

Families

Classic Timepieces

Diving Watches

Frankfurt Financial District

Instrument Chronographs

Instrument Watches

Ladies Watches

Special Edition

Current Listings

[WTS] Built From Actual German Submarine Steel — Sinn U1 Blue (Don’t See These Often)

Built From Actual German Submarine Steel — Sinn U1 Blue (Don’t See These Often)

Sinn - U1 · $2,599
  • Condition: Excellent overall condition
  • Case size: 44mm diameter
  • Strap length flexibility: up to 7.5 inches
Posted at
Apr 26, 2026, 9:12 PM
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[WTS] Sinn 105 St Sa

Sinn 105 St Sa

Sinn - 105 St Sa · $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 · $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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[WTS] Sinn 936 S Black Chronograph Fully Tegimented Limited Edition (100 pieces) - New Release

Sinn 936 S Black Chronograph Fully Tegimented Limited Edition (100 pieces) - New Release

Sinn - 936 S · $4,950
The Sinn 936 S Black Chronograph is a limited edition watch, one of only 100 pieces. It's fully tegimented and features a black chronograph.

  • Condition: Brand new
  • Serial Number: Limited to 100 pieces
  • Country Of Origin: Germany
Posted at
Apr 25, 2026, 1:52 PM
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[WTS] Sinn 556 Mauve, a limited edition. Full Kit.

Sinn 556 Mauve, a limited edition. Full Kit.

Sinn - 556 Mauve · $1,850
This limited edition Sinn 556 Mauve is a unique watch that comes with a full kit.

  • Shipping method: Fedex with insurance
  • Shipping locations: Global shipping accepted
Posted at
Apr 25, 2026, 1:35 PM
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[WTS] Sinn EZM 1.1 S. 25th Anniversary Edition. 500 pcs limited edition. Full Kit.

Sinn EZM 1.1 S. 25th Anniversary Edition. 500 pcs limited edition. Full Kit.

Sinn - EZM 1.1 S · $5,250
This is a limited edition Sinn EZM 1.1 S, one of only 500 produced to commemorate the brand's 25th anniversary.

  • Condition: Minty
  • Limited edition quantity: 500
  • Shipping method: Fedex with insurance
Posted at
Apr 25, 2026, 1:29 PM
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[WTS] Sinn 856.011 Box & Extra Straps $1500 Shipped

Sinn 856.011 Box & Extra Straps $1500 Shipped

Sinn - 856.011 · $1,500
A classic German tool watch known for its clean design, exceptional legibility, and rugged everyday performance.

  • Condition: Signs of wear
  • Case Size: 40mm
  • Movement: Automatic
  • Crystal Type: Sapphire
Posted at
Apr 25, 2026, 10:37 AM
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[WTS] Sinn U50 S L - Limited Edition Full Lume Dial 363/500 - Papers, No Box

Sinn U50 S L - Limited Edition Full Lume Dial 363/500 - Papers, No Box

Sinn - U50 S L · $3,800
A highly sought-after, limited edition Sinn U50 S L with a fully luminous dial and Tegimented DLC coating. This diver's watch is paired with a black H-Link bracelet and features a SW300-1 movement running within +2 seconds per day.

  • Condition: Excellent
  • Diameter: 41mm
  • Thickness: 11.2mm
  • Bracelet size: sized for a 6.7-inch wrist
Posted at
Apr 23, 2026, 1:34 PM
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[WTS] Sinn 556 Annivesary 1961-2016 LE w/ H-link bracelet

Sinn 556 Annivesary 1961-2016 LE w/ H-link bracelet

Sinn - 556 Annivesary 1961-2016 LE · $1,500
This Sinn 556 Anniversary watch is a limited edition model from 1961-2016, featuring an H-link bracelet. It's in great condition overall, with some minor marks.

  • Condition: great condition with minor scratches and hairlines on bracelet and case, outer AR coating has some hairlines
  • Bracelet type: H-link
  • Accessories included: full-kit (excluding Sinn tool)
  • Shipping method: Fedex
Posted at
Apr 23, 2026, 12:50 AM
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