Sinn

UX EZM 2B

Reference Number :

403.030

Series : Diving Watch

Retail: $2,766

(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 UX EZM 2B is no ordinary diver; it's a testament to extreme engineering. Forget about reflections at depth–thanks to its oil-filled HYDRO technology, the dial appears to float impossibly close, legible from any conceivable angle. A watch crafted from German submarine steel, it's a serious tool watch. This is not a watch trying to be stylish; the style is secondary to its purpose and usability. The robust, bead-blasted case and TEGIMENT-hardened bezel laugh in the face of scratches, while the temperature-stabilized quartz movement ticks reliably whether you're diving a tropical reef or exploring an icy shipwreck. At the core, it has a tool watch essence, with exceptional underwater legibility and an absurd 5000m depth rating. It's clear, concise, and to the point, there is no fluff around this time piece. The Sinn UX EZM 2b is a marvel of German engineering, a robust tool watch.

DescriptionThe Sinn UX EZM 2B, reference 403.030, represents a pinnacle of dive watch engineering, meticulously designed to meet rigorous professional standards. Its construction centers around the utilization of high-strength, bead-blasted German submarine steel for the entirety of the case. This material choice provides exceptional resistance to seawater corrosion, surpassing conventional stainless steel alloys. The case, with a diameter of 44 mm and a thickness of 13.3 mm, weighs 105 grams without the strap. The band lug width measures a standard 22mm. The watch is fitted with a screw-fastened case back and a screwable crown, positioned at 4 o'clock to enhance comfort and prevent digging into the wrist. The crown integrates Sinn's D3-System, optimizing water resistance and durability.

Powering the UX is the ETA 955.652, a Swiss-made, temperature-stabilized, high-precision quartz movement. Containing 7 bearing jewels, it ensures accuracy across a broad range of operating temperatures, from -20°C to +60°C, due to Sinn's integrated Temperature Resistance Technology. This movement features a seconds stop function for precise time setting and is anti-magnetic, conforming to DIN 8309 standards. The matte black dial, designed in a mission timer format, prioritizes legibility. Indices, as well as the hour, minute, and second hands, are coated with a luminescent material. The unidirectional diver's bezel, featuring minute ratcheting, is captive, meaning it's engineered to prevent unintentional detachment. This bezel also incorporates Sinn's TEGIMENT technology, significantly increasing its scratch resistance. The watch face is protected by sapphire crystal glass, treated with an anti-reflective coating on both sides. The defining feature is the implementation of Sinn's HYDRO Technology. The case interior is filled with a special oil, negating the refractive differences that occur underwater with standard air-filled watches. This oil-filled design renders the dial readable from any viewing angle underwater, while simultaneously granting water and pressure resistance to a certified diving depth of 5,000 meters (500 bar), as verified by the independent testing organization DNV. This watch meets DIN 8310, and is tested according to diving norms DIN 8306, EN 250 and EN14143, and certified by DNV. The design includes resistance to low pressure.

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