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
29
Listings

Families

Classic Timepieces

Diving Watches

Frankfurt Financial District

Instrument Chronographs

Instrument Watches

Ladies Watches

Special Edition

Current Listings

[WTS] Sinn 144 St Sa – 2019 Full Set – Near Mint – $2,200 Shipped OBO 🎄

Sinn 144 St Sa – 2019 Full Set – Near Mint – $2,200 Shipped OBO 🎄

Sinn - 144 St Sa · $2,200
A classic German pilot chronograph in near-mint condition, with a 2019 full set and automatic chronograph movement.

  • Condition: near-mint
  • Case size: 41mm
  • Movement: Automatic chronograph (Valjoux 7750 base)
  • Crystal: Sapphire
Posted at
Dec 24, 2025, 11:38 PM
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[WTS] Sinn 104 I St Sa – 2022 Full Set – H-link Bracelet & Sinn Leather Band $1,450 OBO 🎄

Sinn 104 I St Sa – 2022 Full Set – H-link Bracelet & Sinn Leather Band $1,450 OBO 🎄

Sinn - 104 I St Sa · $1,450
A versatile and well-loved pilot watch that needs no introduction, offered as a full set ready for its next wrist.

  • Condition: Very good overall
  • Case size: 41mm diameter
  • Water resistance: 200m depth rating
Posted at
Dec 24, 2025, 11:28 PM
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[WTS] 2025 Sinn 356 Flieger Pilot Chronograph on Strap $2700

2025 Sinn 356 Flieger Pilot Chronograph on Strap $2700

Sinn - 356.010 · $2,700
For sale is a 2025 Sinn 356 Flieger Pilot Chronograph on Strap in excellent condition, dated and comes with box and papers.

  • Condition: Excellent condition with little signs of use
  • Year Of Manufacture: 2025
  • Shipping Details: shipped from Singapore, estimated delivery time to US: 4-5 business days
  • Accepted Payment Methods: Wise, Revolut, Wire Transfer, Crypto, Venmo
Posted at
Dec 23, 2025, 12:20 PM
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[WTS] Sinn U50 HydroMint Condition Full Kit Box and Papers 2025 Warranty

Sinn U50 HydroMint Condition Full Kit Box and Papers 2025 Warranty

Sinn - U50 Hydro SDR · $2,299
The Sinn U50 Hydro SDR is a diving watch with a depth rating of 5,000 meters and features 'Hydro' technology for a reflection-free viewing experience. The case and crown are made of German Submarine Steel, with a tegimented and black-coated bezel.

  • Condition: MINT
  • Warranty Years: 2
  • Water Depth Rating: 5,000m
  • Case Material: German Submarine Steel
Posted at
Dec 22, 2025, 10:50 PM
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[WTS] Sinn 556A + Fine link Bracelet - Excellent condition | $1,250

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

Sinn - 556A · $1,250
The Sinn 556 A features a black dial and minimalist design, making it a standout piece for collectors and enthusiasts alike. It is a well-known watch from Sinn with signature technical prowess.

  • Condition: Excellent
  • Case material: Satinized stainless steel
  • Diameter: 38.5mm
  • Thickness: 11mm
Posted at
Dec 21, 2025, 6:24 PM
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[WTS] Sinn 556

Sinn 556

Sinn - 556 · $950
A Sinn 556 with a black dial, Arabic numerals, and a 38.5mm x 11mm case is being sold.

  • Condition: VG- with marks on the case and bezel
  • Movement: Caliber 2824
  • Water resistance: 20 bar
  • Depth rating: 200m
Posted at
Dec 21, 2025, 11:50 AM
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[WTS] Sinn U1 Roberto Olivgrün - #16/50

Sinn U1 Roberto Olivgrün - #16/50

Sinn - U1 Roberto Olivgrün · $3,900
A limited edition Sinn U1 watch in Olive Green, one of only 50 pieces.

  • Limited edition number: #16/50
  • Strap condition: brand new and uncut
Posted at
Dec 21, 2025, 9:59 AM
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[WTS] Sinn EZM1 Titanium 503 “Einsatzzeitmesser” EMZ aka Mission Timer!

Sinn EZM1 Titanium 503 “Einsatzzeitmesser” EMZ aka Mission Timer!

Sinn - EZM1 Titanium 503 · $6,450
A performance German tool watch with a titanium case, featuring a mission timer complication and a rotating bezel.

  • Condition: Overall light signs of wear, no damage
  • Case Size: 40mm diameter
  • Lug To Lug: 46.5mm
  • Thickness: 16mm
Posted at
Dec 20, 2025, 6:17 PM
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[WTS] Sinn U50 MOP

Sinn U50 MOP

Sinn - U50 · $3,650
This Sinn U50 Mother of Pearl diver is a well-maintained timepiece with minimal signs of use, thanks to its tegimenting treatment. The watch features a 6.5" wrist size with extra links and comes with original accessories.

  • Condition: Pre-owned with almost no signs of use
  • Case size: 45mm diameter
  • Water resistance: 200m depth rating
  • Extra accessories included: original box, warranty card, booklet, additional rubber strap, and adjustment tool
Posted at
Dec 20, 2025, 2:44 PM
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