
U2 SDR (EZM 5)
Ref.: 1020.040
Built like a submarine and just as tough, the Sinn U2 SDR (EZM 5) is a serious deep diver. Its 44mm case is forged from actual German submarine steel, making it ridiculously strong and resistant to saltwater corrosion. Rated to 2,000m, this thing can handle more pressure than your inbox. The black hard-coated bezel shrugs off scratches, while the second time zone keeps you on track no matter where you surface. Functional, overbuilt, and unapologetically rugged.







Case Details
All the info on the case construction, dimensions, shape, and finishing.
- Case Diameter
- 44mm
- Lug-to-Lug Distance
- 50.7mm
- Lug Width
- 22mm
- Case Thickness
- 15.5mm
- Caseback Style
- Closed Back
- Lugs Drilled?
- Yes
- Case Shape
- Round
- Case Material
- Submarine Steel
- Case Finishing
- Bead Blasted
- Weight
- 114g
- Water Resistance
- 200 ATM
Movement Details
Technical specs and extras under the hood.
- Movement Type
- Automatic
- Movement Name
- Sellita SW330-1
- Frequency
- 28,800 BPH
- Hacking Seconds?
- Yes
- Complications & Features
- 24-Hour, Date, GMT
- Power Reserve
- 42 hours
- Jewels
- 25
- Shock Absorption
- Incabloc
- Anti-Magnetism
- Anti-Magnetic Protection, DIN 8309, Magnetic Resistant
Dial Details
Color, material, lume, and other dial features.
- Lume Type
- Super-LumiNova
- Dial Color
- Black
- Dial Characteristic
- Matte
Bezel Details
Details about bezel materials, insert, action, and type.
- Bezel Type
- External Bezel
Crystal Details
Crystal material, type, and coatings.
- Crystal Material
- Sapphire Crystal
- Anti-Reflective Coating?
- Yes
Crown Details
Crown type and any additional crown functions.
- Crown Type
- Screw-Down
General Details
Brand, origin, price range, and more.
- Brand
- Sinn
- Country of Origin
- Germany
- Watch Type
- Dive
- Price Range (USD)
- $$$