Sinn

UX SDR GSG 9 EZM 2B

Reference Number :

403.051

Series : Diving Watch

Retail: $2,817

(As of: 03/2025)

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 UX SDR GSG 9 is a robust tool, but it is no barebones instrument. Its submarine steel case, finished with a severe bead-blasting, houses the oil-filled marvel of Sinn's HYDRO Technology. The inky black dial becomes an endless abyss, thanks to that oil, with the crisp white hands and markers seeming to float above. This effect is not just cool, but makes it legible from even the craziest angles underwater. The shifted crown adds to the unique feel of the UX. No digging into your wrist, and it sets this timepiece apart as a serious piece of equipment, it is clear where this watch came from with GSG 9 printed on the dial. The watch has a captive bezel that requires you to push down on the bezel to rotate it, making unintentional rotations very rare, and it also features Sinn's Tegiment technology to resist scratches. The quartz movement won't make purists swoon, but it's the ultimate grab-and-go, worry-free engine for a watch that means business.

DescriptionThe Sinn UX SDR GSG 9 (EZM 2B), reference 403.051, represents a purpose-built diving instrument designed in collaboration with the German GSG 9 special forces maritime unit. Its construction centers around a 44mm bead-blasted case crafted from high-strength, seawater-resistant German Submarine Steel. This material choice ensures exceptional durability and corrosion resistance in harsh marine environments. The case incorporates a screw-fastened case back and a screwable crown positioned at 10 o'clock, a design element intended to prevent pressure against the back of the hand during operations. The watch meets the technical requirements for water resistance as outlined in DIN 8310 standards. Furthermore, it achieves a remarkable water and pressure resistance rating to a diving depth of 5000 meters (equivalent to 500 bar), certified by an independent testing institute. This impressive rating underscores its capability for extreme underwater use, far surpassing the needs of even professional divers. It is also low-pressure resistant. The watch uses a captive diver's bezel.

Powering the UX SDR GSG 9 is the ETA 955.652 high-precision, temperature-stabilized quartz movement. This movement features 7 bearing jewels and offers a seconds stop function for precise time setting. It exhibits anti-magnetic properties conforming to DIN 8309 standards. Sinn's proprietary HYDRO Technology is a critical feature, filling the case with a special oil. This eliminates any air-to-crystal interface, providing perfect readability underwater with complete freedom from reflection at any viewing angle and absolute freedom from fogging. The dial design prioritizes legibility, following a mission timer format. The matte black dial surface provides a stark contrast against the white indices and hands, all coated with luminescent material for visibility in low-light conditions. The diver's bezel, featuring minute ratcheting and a luminous key mark, has a Black Hard Coating applied over a TEGIMENT Technology base. This combination vastly increases scratch resistance. Functionality remains reliable across a wide temperature range, from –20 °C to +60 °C, thanks to Sinn's temperature resistance technology. The watch features sapphire crystal glass with anti-reflective treatment on both sides. The band lug width measures 22mm and the case has a thickness of 13.3mm. The watch head weighs 105 grams without the integrated black silicone strap and bead-blasted folding clasp.

GenderMen

SignaturesSinn

Country of OriginGermany

Case Size44 mm

MovementQuartz

CaliberETA 955.652

FunctionsHours, Minutes, Seconds, Date

Case MaterialsSubmarine Steel

Bezel MaterialsSubmarine Steel

Lug MaterialsSubmarine Steel

Case BackSolid

CrownScrew Down