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Sinn EZM
© Raimond Spekking / CC BY-SA 4.0 (via Wikimedia Commons) · Sinn EZM 3, Einsatzzeitmesser family stand-in for the EZM 13; both are Sinn mission-timer chronographs with Ar-dehumidification and robust professional-tool character.

EZM

Sinn’s "Einsatzzeitmesser" mission-timer line, built for German police, fire-brigade, and special-forces operators. EZM 13 is the dive chronograph; EZM 12 is the medical-dispatch reference. The line trades on tool-watch credibility, not aesthetics.

Year introduced: 19971 reference

References in this family

  • luxuryneo-vintageETA/Valjoux 7750 -- Swiss automatic chronograph, 28,800bph, 42h PR, 25j; cam-and-lever system (column-wheel optional), workhorse chronograph ebauche41mm2008–presenteditorial
    Open

Which ref to buy

EZM stands for Einsatzzeitmesser -- mission timer. The EZM line is Sinn's series designed for specific professional use cases: EZM 1 for firefighters, EZM 2 for combat divers, EZM 13 for general task force use. Each variant has specifications derived from an actual operational brief rather than marketing imagination.

  1. 1

    Sinn EZM 13 -- mission timer designed around actual task force operational requirements.

    The case for it:
    Black PVD case, extreme anti-magnetic protection, high-torque ETA movement, AR-coated crystal, and specifications written to a real military brief. The EZM 13 is legible, durable, and purpose-built. For buyers who want the most operationally literal tool watch in the Sinn catalog, this is it.
    Consider instead if:
    The EZM aesthetic is militaristic to the point of being narrow in wardrobe applicability. The 556 or 103 carry similar Sinn tool-watch DNA with more flexibility.
    Open

Rankings last reviewed 2026-06-07. Editorial perspective only. Not financial advice.

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EZM | Grail Atlas