Sinn · Family: EZM
The Sinn EZM 3 (603.EZM-3) is a 41mm steel mission-timer watch ('Einsatzzeitmesser'), originally developed for rescue and tactical intervention teams, distinct from the technical dress watch 556, the high-water-resistance dive watch U1, and the aviation 104 already in the catalog. It runs an automatic ETA 2824-2 movement with 38 hours of power reserve and 500m water resistance. Cazador has no verified price observations (n=0) for this reference as of today.
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Insufficient data: 0 price observations (PricePoints) recorded as of July 25, 2026. Cazador does not estimate or infer a range without sourced market data.
Sinn was founded in 1961 in Frankfurt, Germany, by pilot and engineer Helmut Sinn, and has since built its reputation on instrument watches designed for demanding operational conditions, with proprietary dehumidifying and anti-magnetic technologies.
The EZM series (from 'Einsatzzeitmesser,' literally 'mission timer' in German) groups the watches Sinn has developed in direct collaboration with rescue, tactical, and professional diving units, often at those operational teams' own request. It is a distinct line from the brand's general-catalog watches.
The EZM 3, reference 603.EZM-3, is one of this series' foundational models: a case in Sinn's own Tegiment-hardened steel, a ceramic dive bezel, and 500 meters of water resistance, well above what's typical even for professional dive watches.
It runs an automatic ETA 2824-2 movement, a base caliber widely used across Swiss watchmaking, with 38 hours of power reserve. This reference is clearly distinct from the other three Sinn models already in Cazador's catalog: the 556 is an entry-level technical dress watch, the U1 is a high-water-resistance dive watch with a submarine-steel case, and the 104 is an aviation watch; the EZM 3, by contrast, belongs to the mission-watch series developed for operational teams. [UNVERIFIED: we do not confirm the exact launch year for this specific reference, nor whether it remains in active catalog beyond July 2026].
Cazador has no verified price observations for this reference (0 PricePoints recorded as of July 2026). We do not publish estimates without our own sourced market data.
It's short for 'Einsatzzeitmesser,' literally 'mission timer' in German: a series of watches Sinn develops in direct collaboration with rescue and tactical intervention units.
500 meters, a notably high figure even for a professional dive watch, thanks to its Tegiment-hardened submarine-steel case.
Both share Tegiment-hardened submarine steel, but the EZM 3 belongs to the mission-watch series developed with operational teams, while the U1 is the brand's general-catalog dive proposition.
An automatic ETA 2824-2, with 38 hours of power reserve and 26 jewels, a base caliber widely used across Swiss watchmaking.
A surface-hardening treatment Sinn applies to its case steel to increase scratch resistance, also present on the EZM 3.
It belongs to the EZM series, originally developed in collaboration with rescue and tactical intervention teams, unlike general-catalog models such as the 556.