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
50
Listings

Families

Classic Timepieces

Diving Watches

Frankfurt Financial District

Instrument Chronographs

Instrument Watches

Ladies Watches

Special Edition

Current Listings

[WTS] Sinn 556A Full Set | Recently Serviced

Sinn 556A Full Set | Recently Serviced

Sinn - 556A · $1,300
This Sinn 556A is a super clean, no-nonsense tool watch with a classic fully-lumed Arabic dial. It has been recently serviced and lightly refinished back to factory spec.

  • Condition: Excellent
  • Case size: 38.5mm diameter
  • Lug width: 20mm
  • Movement: ETA2824
Posted at
Jan 2, 2026, 1:24 AM
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[WTS] Sinn 103 Classic 12 Limited Edition

Sinn 103 Classic 12 Limited Edition

Sinn - 103 Classic 12 Limited Edition · $4,250
A limited run of 600 pieces with a ceramic bezel, one of the most beautiful pieces Sinn has produced.

  • Condition: Mint
  • Limited Production Run: 600 pieces
Posted at
Jan 1, 2026, 8:04 PM
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[WTS] Sinn 856 S Bracelet

Sinn 856 S Bracelet

Sinn - 856 S
No description of the watch provided in the listing.

Posted at
Jan 1, 2026, 7:34 PM
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[WTS] Sinn 104 St Sa

Sinn 104 St Sa

Sinn - 104 St Sa · $999
A five year old Sinn 104 in pretty good shape, some light scratches on the bezel are present.

  • Condition: Pretty good shape with light scratches on the bezel
  • Age: 5 years old
Posted at
Jan 1, 2026, 1:02 PM
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[WTS] Sinn 144 St Sa – 2019 Full Set – Near Mint – $2,050 Shipped OBO 🎉 12/31 Year-End Sale

Sinn 144 St Sa – 2019 Full Set – Near Mint – $2,050 Shipped OBO 🎉 12/31 Year-End Sale

Sinn - 144 St Sa · $2,050
a classic German pilot chronograph, 41mm case size and automatic chronograph movement.

  • Condition: Near mint / excellent
  • Year: 2019
  • Case size: 41mm diameter
  • Movement: Automatic chronograph (Valjoux 7750 base)
Posted at
Dec 31, 2025, 12:48 AM
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[WTS] Price Reduced! Sinn 104 I St Sa –2022 Full Set – Both H link bracelet & Leather Strap – $1,350 Shipped OBO 🎉 12/31 Year-End Sale

Price Reduced! Sinn 104 I St Sa –2022 Full Set – Both H link bracelet & Leather Strap – $1,350 Shipped OBO 🎉 12/31 Year-End Sale

Sinn - 104 I St Sa · $1,350
a versatile and well-loved pilot watch offered as a full set and ready for its next wrist

  • Condition: Very good overall
  • Case Size: 41mm
  • Crystal: Sapphire (front & display caseback)
  • Movement: Automatic (Sellita SW220-1)
Posted at
Dec 31, 2025, 12:42 AM
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[WTS] Sinn EZM 3 41mm Full Kit 2022 $1550

Sinn EZM 3 41mm Full Kit 2022 $1550

Sinn - EZM 3 · $1,550
The Sinn EZM 3 is a German tool watch built for professional use, known for its clean design and durability. It features a compact case, short lugs, and a variety of technical specifications, making it a great everyday wearer.

  • Condition: Used, minor scuff on lower left lug
  • Case diameter: 41mm
  • Thickness: 12.3mm
  • Lug-to-lug: 47mm
Posted at
Dec 30, 2025, 8:58 PM
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[WTS] Sinn 556A + Fine link Bracelet | $1,250

Sinn 556A + Fine link Bracelet | $1,250

Sinn - 556A · $1,250
The Sinn 556 A is a well-known watch with signature technical prowess, featuring a black dial and minimalist design.

  • Condition: Excellent
  • Case Material: satinized stainless steel
  • Diameter: 38.5mm
  • Thickness: 11mm
Posted at
Dec 30, 2025, 4:21 PM
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[WTS] Sinn 104 I St Sa White Dial - Upgraded Easy-Adjust Clasp

Sinn 104 I St Sa White Dial - Upgraded Easy-Adjust Clasp

Sinn - 104 I St Sa · $4,200
A Sinn 104 I St Sa White Dial watch with an upgraded easy-adjust clasp and bonus integrated rubber strap. The watch has a black bezel and is best worn on the H-Link bracelet.

  • Condition: Very good cosmetic condition, minor marks on the case and bezel
  • Bracelet upgrade: easy-adjust, on-the-fly micro-adjustment clasp
  • Strap: black aftermarket integrated rubber strap
  • Accuracy: +25 to +30 seconds fast per day
Posted at
Dec 30, 2025, 11:06 AM
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