Sinn
German tool-watch maker renowned for proprietary technologies like Tegiment hardening, dehumidifying capsules, and diesel oil case cushioning developed for pilots and divers.
- Founded
- 1961
- Founder
- Helmut Sinn
- Country
- Germany
- Headquarters
- Frankfurt am Main, Germany
- Status
- Independent, employee-owned since 1994 under Lothar Schmidt
- Signature materials
- Tegimented steel, submarine steel, German silver
- Signature movements
- SW300-1 (Sellita), Valjoux/ETA 7750-based chronographs
- Notable designers
- In-house design studio
- Collections
- 8
Collections & specifications
U1
Flagship U-boat steel diver's watch made from submarine steel, resistant to seawater corrosion.
- Category
- Dive
- Designers
- In-house design studio
- Case materials
- U-boat steel (submarine steel), Tegimented steel
- Sizes
- 44mm
- Dial
- Matte black
- Crystal
- Sapphire
- Strap / bracelet
- Steel bracelet, rubber, silicone
- Movements
- SW200-1 (Sellita)
- Movement type
- Automatic
- Power reserve
- 38 hours
- Water resistance
- 1000m
- Complications
- Date
- Key references
- U1 SDR, U1 S
- Price band
- $2,200–$3,200
U2
Titanium-cased diver variant of the U1 with even greater depth rating and lighter weight.
- Category
- Dive
- Designers
- In-house design studio
- Case materials
- Titanium, Tegimented titanium
- Sizes
- 44mm
- Dial
- Matte black
- Crystal
- Sapphire
- Strap / bracelet
- Titanium bracelet, silicone
- Movements
- SW200-1 (Sellita)
- Movement type
- Automatic
- Power reserve
- 38 hours
- Water resistance
- 2000m
- Complications
- Date
- Key references
- U2 EZM 5
- Price band
- $2,800–$3,800
103
Classic pilot's chronograph, one of Sinn's oldest continuously produced references.
- Category
- Pilot
- Designers
- In-house design studio
- Case materials
- Stainless steel
- Sizes
- 41mm
- Dial
- Black with luminous chronograph subdials
- Crystal
- Sapphire
- Strap / bracelet
- Leather, steel bracelet
- Movements
- Valjoux 7750 (SZ01)
- Movement type
- Automatic
- Power reserve
- 44 hours
- Water resistance
- 200m
- Complications
- Date · Chronograph
- Key references
- 103 St Sa, 103 Ti
- Price band
- $2,600–$3,600
104
Pilot's chronograph variant with cleaner three-register layout and date complication.
- Category
- Pilot
- Designers
- In-house design studio
- Case materials
- Stainless steel
- Sizes
- 41mm
- Dial
- Black, tri-compax layout
- Crystal
- Sapphire
- Strap / bracelet
- Leather, steel bracelet
- Movements
- Valjoux 7750 (SZ01)
- Movement type
- Automatic
- Power reserve
- 44 hours
- Water resistance
- 200m
- Complications
- Date · Chronograph
- Key references
- 104 St Sa
- Price band
- $2,500–$3,500
556
Entry point into the Sinn range, a versatile three-hand sport watch with excellent value.
- Category
- Sport
- Designers
- In-house design studio
- Case materials
- Stainless steel
- Sizes
- 38.5mm
- Dial
- Black, white
- Crystal
- Sapphire
- Strap / bracelet
- Leather, steel bracelet
- Movements
- SW200-1 (Sellita)
- Movement type
- Automatic
- Power reserve
- 38 hours
- Water resistance
- 200m
- Complications
- Date
- Key references
- 556 I, 556 A
- Price band
- $1,300–$1,900
857
Rugged diver's chronograph combining Sinn's dive and chronograph technologies.
- Category
- Dive
- Designers
- In-house design studio
- Case materials
- Stainless steel, Tegimented steel
- Sizes
- 40mm
- Dial
- Black
- Crystal
- Sapphire
- Strap / bracelet
- Steel bracelet, silicone
- Movements
- Valjoux 7750 (SZ01)
- Movement type
- Automatic
- Power reserve
- 44 hours
- Water resistance
- 500m
- Complications
- Date · Chronograph
- Key references
- 857 UTC
- Price band
- $3,000–$4,200
EZM
Einsatzzeitmesser (mission timer) series developed with German special forces and rescue units.
- Category
- Tool
- Designers
- In-house design studio
- Case materials
- Stainless steel, titanium, Tegimented steel
- Sizes
- 41mm–45mm
- Dial
- Matte black
- Crystal
- Sapphire
- Strap / bracelet
- Silicone, textile strap
- Movements
- SW200-1, Valjoux 7750-based
- Movement type
- Automatic
- Power reserve
- 38–44 hours
- Water resistance
- 200–1000m
- Complications
- Date · Chronograph (select models)
- Key references
- EZM 3, EZM 13
- Price band
- $2,200–$3,800
Tegimented
Watch line highlighting Sinn's proprietary Tegiment surface-hardening technology for extreme scratch resistance.
- Category
- Tool
- Designers
- In-house design studio
- Case materials
- Tegimented stainless steel
- Sizes
- 41mm–44mm
- Dial
- Matte black
- Crystal
- Sapphire
- Strap / bracelet
- Steel bracelet, rubber
- Movements
- SW200-1 (Sellita)
- Movement type
- Automatic
- Power reserve
- 38 hours
- Water resistance
- 200–1000m
- Complications
- Date
- Key references
- U1 T, 104 St Sa T
- Price band
- $2,200–$3,200