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 U50 Tegimented Bracelet

Sinn U50 Tegimented Bracelet

Sinn - U50 · $2,700
For sale is a Sinn U50 with a Tegimented bezel and bracelet, coming with traditional clasp and diver extension. It includes all links, sized for a 17.5 cm wrist, and comes in its original box with papers.

  • Bracelet type: Tegimented
  • Clasp style: traditional
  • Extension: diver
Posted at
May 2, 2026, 6:47 PM
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[WTS] Sinn 936 S Black Chronograph Fully Tegimented Limited Edition (100) - New Release

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

The recently released limited edition Sinn 936 S Black Chronograph Fully Tegimented is a fully tegimented chronograph with only 100 pieces produced. It comes with complete box and papers.

  • Condition: New
  • Limited edition: only 100 pieces produced
  • Msrp: $5270 (US)
  • Shipping included: continental USA only
Posted at
May 2, 2026, 1:00 PM
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[WTS] Sinn 556 I RS on H-Link Bracelet Excellent Condition $1200 shipped

Sinn 556 I RS on H-Link Bracelet Excellent Condition $1200 shipped

Sinn - 556 I RS · $1,200
A Sinn 556 I RS watch with a red seconds hand, designed for legibility in low-light conditions and durability around magnetic fields. It's sold new retailing over $1500+, but the seller is offering it for $1200 shipped.

  • Condition: Excellent Condition
  • Bracelet: H-Link
  • Clasp: OEM fliplock clasp
Posted at
May 2, 2026, 12:18 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 · $4,999
This is a rare and sought after limited edition Sinn EZM 1.1 S, one of only 500 pieces. It comes with a full kit and is in excellent condition.

  • Condition: Minty
  • Limited edition quantity: 500
  • Shipping details: FedEx with insurance, globally accepted
Posted at
May 2, 2026, 11:39 AM
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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: Used, signs of wear; mark on hour hand; clean crystal
  • Case Size: 40mm diameter
  • Movement: Automatic
  • Crystal: Sapphire
Posted at
May 2, 2026, 9:53 AM
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[WTS] Sinn 356 Sa GR Chronograph Power Reserve 2017 on fine link bracelet ref 356.15940

Sinn 356 Sa GR Chronograph Power Reserve 2017 on fine link bracelet ref 356.15940

Sinn - 356.15940 · $3,150
A German tool watch with a black dial and power reserve indicator, housed in a fine link bracelet.

  • Condition: Very healthy, no service history
  • Movement: Valjoux 7750 automatic movement
  • Case diameter: 38.5 mm
  • Band lug width: 20 mm
Posted at
May 1, 2026, 9:18 PM
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[WTS] Sinn 104 W.O.S “Summer Blue” Limited Edition (200 pcs) 2024 Ultimate Summer Pilot Watch

Sinn 104 W.O.S “Summer Blue” Limited Edition (200 pcs) 2024 Ultimate Summer Pilot Watch

This Sinn 104 Pilot St Sa is a limited edition collaboration with Watches of Switzerland, featuring a striking summer blue dial and a durable pilot watch design.

  • Condition: Excellent
  • Case size: 41mm diameter
  • Movement: Sinn 104 platform caliber (automatic)
  • Water resistance: 200m depth rating
Posted at
May 1, 2026, 8:21 PM
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[WTS] Sinn 356 Pilot Chronograph – Black Dial Classic, Pure Tool Watch DNA

Sinn 356 Pilot Chronograph – Black Dial Classic, Pure Tool Watch DNA

Sinn - 356 · $2,400
A compact and highly versatile tool watch with a matte black dial, tri-compax layout, and automatic chronograph movement. It wears well on various wrists due to its vintage proportions and modern capability.

  • Condition: Great overall condition, light signs of wear
  • Case size: 38.5mm diameter
  • Movement: Valjoux 7750 base, Automatic chronograph
  • Crystal: Acrylic crystal
Posted at
May 1, 2026, 8:16 PM
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[WTS] Sinn 157 Chronograph Full Set Neo-Vintage Tritium

Sinn 157 Chronograph Full Set Neo-Vintage Tritium

Sinn - 157.M · $3,150
A steel matte variant of the vintage pilot chronograph produced between 1993 and 2004, featuring a tritium dial and Lemania 5100 self-winding automatic movement.

  • Condition: Excellent, minimal signs of wear and polish
  • Case width: 40mm
  • Lug-to-lug: 44.3mm
  • Lug width: 20mm
Posted at
May 1, 2026, 11:13 AM
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