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.

12
Watches
7
Families
46
Listings

Families

Classic Timepieces

Diving Watches

Frankfurt Financial District

Instrument Chronographs

Instrument Watches

Ladies Watches

Special Edition

Current Listings

[WTS] Sinn 556 I RS - Full Set

Sinn 556 I RS - Full Set

Sinn - 556 I RS · $1,200
A Sinn 556 I RS watch, full set, including steel reef micro extension, extra bracelet links, tools, and original H-link bracelet. The watch has been worn for about nine months.

  • Condition: Good overall condition with scratches and signs of daily wear
  • Movement Condition: Excellent
  • Bracelet Size: Adjustable
Posted at
May 10, 2026, 9:27 PM
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[WTS] Sinn U1-B 1010 — 44mm — Box and Papers — $1,799 Shipped 🔥🔥

Sinn U1-B 1010 — 44mm — Box and Papers — $1,799 Shipped 🔥🔥

Sinn - U1-B 1010 · $1,799
This Sinn U1-B 1010 is a 44mm watch that includes the inner and outer box, manual, and warranty card dated 2014. The crystal is clean, but there's possible dirt on the hour marker, light wear on the bezel, and very light hairlines on the case and bracelet.

  • Condition: Good overall with minor wear and dirt on hour marker
  • Size: 44mm diameter
  • Box And Papers: true
  • Shipping Cost: +$15 for overnight shipping
Posted at
May 10, 2026, 8:04 PM
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[WTS] Sinn 105 - Reduced price!

Sinn 105 - Reduced price!

Sinn - 105 St Sa · $1,450
Sinn 105 St Sa described as sturdy, reliable, and well-looking, ideal for tool watches.

  • Condition: Excellent with hairline scratches on clasp and a small scratch on crystal
Posted at
May 10, 2026, 4:14 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 Black · $3,500
This Sinn U50-T S Black is a fully tegimented watch with a matte finish, housed in a submarine steel case with a water resistance of 500 meters.

  • Condition: Like new
  • Watch Diameter: 41.0mm
  • Watch Height: 11.2mm
  • Lug Width: 20mm
Posted at
May 10, 2026, 10:08 AM
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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 · $4,950
This is a limited edition Sinn EZM 1.1 S, one of only 500 pieces made to celebrate the brand's 25th anniversary.

  • Condition: Minty
  • Production run: 500 pieces
  • Edition type: anniversary edition
Posted at
May 9, 2026, 2:52 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

Sinn - 936 S · $4,950
Recently released limited edition Sinn 936 S Black Chronograph with tegimented case, only 100 pieces produced.

  • Condition: New
  • Material: Tegimented stainless steel
  • Production run: Limited to 100 pieces
Posted at
May 9, 2026, 2:49 PM
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[WTS]: Sinn U50 DS Tegimented on Bracelet Full Kit

: Sinn U50 DS Tegimented on Bracelet Full Kit

Sinn - U50 DS Tegimented Limited Edition · $3,300
This Sinn U50 DS Tegimented is a unique model featuring an individually finished "Dekorschliff" dial, paired with a tegimented submarine steel case. It's a solid everyday/tool watch that feels special.

  • Condition: Extremely clean, minimal wear
  • Purchase Date: December 2025
  • Warranty Status: Still under Sinn warranty
  • Bracelet Type: H-Link bracelet
Posted at
May 9, 2026, 2:45 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 and exceptional legibility, featuring a utilitarian aesthetic and rugged everyday performance.

  • Condition: Signs of wear with a visible mark on the hour hand and clean crystal
  • Case size: 40mm diameter
  • Movement: Automatic
  • Crystal type: Sapphire
Posted at
May 8, 2026, 9:14 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 classic tri-compax layout and excellent legibility, paired with modern capability.

  • Condition: great overall condition with light signs of wear consistent with careful use
  • Case size: 38.5mm diameter
  • Movement: Valjoux 7750 base, automatic chronograph
  • Crystal material: acrylic
Posted at
May 8, 2026, 9:05 PM
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