Sinn

U2 SDR EZM 5

Reference Number :

1020.040

Series : Diving Watch

Retail: $3,224

(As of: 02/2025)

This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Sinn. If you are interested in selling this watch to us, you can contact us here.

Quick TakeThe Sinn U2 SDR is the horological equivalent of a deep-sea submersible. Forged from German Submarine Steel, it laughs in the face of crushing pressures and corrosive saltwater, boasting a 2000-meter depth rating. It's not just about surviving, the U2 SDR is about absolute precision. The Ar-Dehumidifying Technology ensures crystal-clear visibility, no matter the temperature swings, mirroring the unwavering focus a professional diver needs. The watch is a steadfast presence that will not waver. The GMT function adds a layer of global awareness, while the TEGIMENT-hardened bezel stands guard against the inevitable scrapes of an active life. This isn't just a watch; it's a testament to German engineering, a rugged instrument built for those who demand unwavering reliability, down to the precise beat of its SW 330-1 movement. The clear mission timer design provides optimal readability under pressure.

DescriptionThe Sinn U2 SDR EZM 5, reference 1020.040, is constructed entirely from high-strength, bead-blasted German Submarine Steel. This specialized material provides exceptional seawater resistance and possesses superior anti-magnetic qualities, exceeding the requirements of DIN 8309. The watch's pressure resistance is certified by DNV to a diving depth of 2,000 meters (200 bar), meeting both DIN 8310 water-resistance standards and the diving norm DIN 8306. It is further tested and certified to European diving equipment standards EN 250 and EN14143, confirming its suitability for professional diving applications. A screw-fastened case back and screwable crown contribute to its robust water resistance and it is also low pressure resistant.

The movement powering the U2 SDR is the SW 330-1, a self-winding mechanism with 25 bearing jewels. It operates at a frequency of 28,800 semi-oscillations per hour and includes a seconds stop function for precise time setting. The watch incorporates Sinn's proprietary Temperature Resistance Technology, guaranteeing functional reliability across a temperature range of -45°C to +80°C. Ar-Dehumidifying Technology, incorporating EDR seals with significantly reduced gas permeability, three drying capsules, and a protective gas fill, enhances functional reliability by preventing internal fogging. The 4.2mm thick, slightly domed sapphire crystal is anti-reflective on both sides. A captive diver's bezel, featuring minute ratcheting and a luminous key mark, is hardened using TEGIMENT Technology and finished with a Black Hard Coating. The matte black dial displays hours, minutes, seconds, a date display, and a second time zone via a 24-hour hand, all designed in a mission timer format for optimal readability. Indices, hour, minute, and second hands are coated with luminescent material. The case diameter measures 44 mm, with a band lug width of 22 mm and a case thickness of 15.5 mm. The weight of the watch head, excluding the strap, is 114 grams. The crown's placement at the 4 o'clock mitigates pressure points that would occur otherwise.

GenderMen

SignaturesSinn

Country of OriginGermany

Case Size44 mm

MovementAutomatic

CaliberSW 330-1

FunctionsHours, Minutes, Seconds, Date, GMT

Case MaterialsSubmarine Steel

Bezel MaterialsSubmarine Steel

Lug MaterialsSubmarine Steel

Case BackSolid

CrownScrew Down