Instrument Watches
Series 240 C
Ref. 240.021
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
Instrument Watches
Series 240 C St GZ
Ref. 240.011
Instrument Watches
Series 240 St
Ref. 240.010
Instrument Watches
Series 556 A
Ref. 556.014
Instrument Watches
Series 556 Anniversary
Ref. 556.0103
Instrument Watches
Series 556 I
Ref. 556.010
Instrument Watches
Series 556 I M
Ref. 556.0101
Instrument Watches
Series 556 I Mother-of-pearl W
Ref. 556.0102
Current Listings
![[WTS] Sinn U50 SL Lume Dial Limited Edition](https://preview.redd.it/5efwa0hap7zg1.jpg?width=640&crop=smart&auto=webp&s=c0fdf8ce5f44b9b7d9c58e02d7030c5457ea7229)
Sinn U50 SL Lume Dial Limited Edition
This is the standout 2024 release from Frankfurt: a fully luminescent dial variant of the legendary U50 diver.
- Condition: 9.5/10
- Case material: German Submarine Steel
- Coating: Black Hard Coating on TEGIMENT Technology base (highly scratch-resistant)
- Dimensions: 41mm diameter | 11.2mm thickness | 47mm lug-to-lug
![[WTS] Sinn EZM 3s 2025, $2200](https://preview.redd.it/aqrv7478m5zg1.jpg?width=640&crop=smart&auto=webp&s=52da7c42aa42bf38fe6814ecf3bb6d8ba11d5c2e)
Sinn EZM 3s 2025, $2200
This listing is for a Sinn EZM 3s, a high-end watch with a preowned condition and includes box, warranty, and manuals.
- Condition: Preowned
- Warranty: 2025 dated
- Shipping: from Singapore, including tariffs and duties
![[WTS] Sinn 103 St Sa](https://preview.redd.it/67t07ygwl5zg1.jpg?width=640&crop=smart&auto=webp&s=405dae7f09ea4cb988a18c58a8bda84f2be62f86)
Sinn 103 St Sa
The Sinn 103 St Sa is a pilot chronograph with day-date complication and automatic mechanical chronograph movement based on the Valjoux 7750.
- Condition: Very good, minor cosmetic wear
- Case diameter: 41mm
- Water resistance: 200m (20ATM)
- Movement type: Automatic mechanical chronograph
![[WTS] Sinn 556a very good condition full kit](https://preview.redd.it/uwqg8s00b4zg1.jpg?width=640&crop=smart&auto=webp&s=575237cf4e6e35fb70369ae455329215af104b96)
Sinn 556a very good condition full kit
This Sinn 556a is the 2021 model featuring an aviator-style dial with COSC-certified performance.
- Condition: Very good (VG)
- Movement Performance: Running perfect, within COSC standards
- Dimensions: 38.5mm diameter, 11mm thick, 20mm lug width
- Water Resistance: 200m
![[WTS] Sinn U50 Tegimented Bracelet](https://preview.redd.it/g7dal857zsyg1.jpeg?auto=webp&s=28f2312c30902cb748c3c70c8ac0cc21a40a1ff8)
Sinn U50 Tegimented Bracelet
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
![[WTS] Sinn 936 S Black Chronograph Fully Tegimented Limited Edition (100) - New Release](https://preview.redd.it/q7zxzoeb9ryg1.jpg?width=640&crop=smart&auto=webp&s=d3dfec1d966f0e6302d40153e0b5761573782bea)
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
![[WTS] Sinn 556 I RS on H-Link Bracelet Excellent Condition $1200 shipped](https://preview.redd.it/zsrxj7gn1ryg1.jpg?width=640&crop=smart&auto=webp&s=c7d8e47669ac2ac9fd2469a224b77c3504cd3fa8)
Sinn 556 I RS on H-Link Bracelet Excellent Condition $1200 shipped
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
![[WTS] Sinn EZM 1.1 S. 25th Anniversary Edition. 500 pcs limited edition. Full Kit.](https://preview.redd.it/l2otz76yuqyg1.jpeg?auto=webp&s=24cc77585814c32106555c25d42e897de455d8c5)
Sinn EZM 1.1 S. 25th Anniversary Edition. 500 pcs limited edition. Full Kit.
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
![[WTS] Sinn 856.011 Box & Extra Straps $1500 Shipped](https://preview.redd.it/g2sr4umtbqyg1.jpg?width=640&crop=smart&auto=webp&s=3370bc233e51cc53d54e602777e5862d07676588)
Sinn 856.011 Box & Extra Straps $1500 Shipped
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