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The Sinn EZM 1.1 S Einsatzuhr as a limited edition for the 25th anniversary with an edition of 500 pieces! What more could you want? The specifications are really impressive. As soon as the watch is available I will present it to you in more detail in a test!


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  • Sinn EZM 1.1
  • Limited to 500 pieces
  • SINN chronograph movement SZ01
  • 60-minute stop indication from the center
  • Case made of stainless steel, bead blasted
  • Black hard coating on tegimented background
  • Ar-drying technology, thus increased functional and fogging safety
  • Functionally reliable from – 45 °C to + 80 °C
  • Sapphire crystal cover glass
  • Crown and pusher on the left side of the case to prevent the watch from pressing into the back of the hand
  • Captive pilot’s bezel with minute ratchet
  • EZM design for best readability
  • Waterproof and pressure resistant up to 20 bar
  • Vacuum proof
Sinn EZM 1.1 S - 25 Jahre Jubiläum Einsatzzeitmesser
Sinn EZM 1.1 S – 25 Jahre Jubiläum Einsatzzeitmesser – Foto Sinn

Sinn EZM 1.1 S 25th Anniversary Mission Timer Limited Edition 500

Always ready for action: That’s what our range of mission timers has stood for for 25 years now. This statement can also be taken literally with regard to our EZM 1.1 S! Because the mission timer has everything it takes to withstand even the most adverse conditions. We have given it the necessary technological equipment for the most demanding missions. For example, the Ar-Dehumidifying technology for increased functional and fogging safety or the functional reliability in the temperature range from – 45 °C to + 80 °C. We have also surface-hardened the bead-blasted stainless steel case using TEGIMENT technology, which forms the basis for the black hard coating. It gives the chronograph value, modernity and professionalism. Combined with the fact that this combination represents the most durable form of black coating that is feasible according to the current state of the art.

Sinn EZM 1.1 S - 25 Jahre Jubiläum Einsatzzeitmesser
Sinn EZM 1.1 S – 25 Jahre Jubiläum Einsatzzeitmesser

Stop time from the center: exemplary in terms of readability

For the EZM 1.1 S to be able to perform its core task – displaying accurate time measurement – without restriction, it must not only have taker qualities, but also function like a precise instrument. The highest priority here is perfect readability, the requirement to capture time scenarios as far as possible at a glance, even when things get turbulent in the field. For this purpose, the EZM 1.1 S has the appropriate SINN chronograph movement. We designed the SZ01, based on the proven Concepto C99001, so that the watch has a jumping 60-minute stopwatch hand from the center. The consequence: stop times can be recorded more easily, quickly and accurately. For one thing, 60 instead of 30 minutes are counted in one hand revolution. Secondly, the assigned minute stopwatch scale can be seen over the full dial diameter.

Sinn EZM 1.1 S - 25 Jahre Jubiläum Einsatzzeitmesser
Foto Sinn

Einsatzfest down to the last detail – Sinn EZM 1.1 S 25th Anniversary Einsatzzeitmesser

Another useful tool for short time measurement, besides the chronograph function, is the bilaterally rotating, backward-counting pilot’s bezel with minute click. To prevent it from popping off, it has been captively attached to the case. In the interest of readability and timekeeping, we have also visually reduced all printing on the dial that is irrelevant for use by using red color. We have also carefully chosen the position of the crown and pusher on the left side of the case. Neither control element presses on the back of the hand at this position. And even in the greatest of haste, getting caught is virtually impossible. All this shows: The EZM 1.1 S is serviceable down to the last detail.

Foto Sinn

Special edition for the anniversary

The EZM design of the EZM 1.1 S thus created for best readability stands on the shoulders of proven role models. In fact, the chronograph is a special edition limited to 500 pieces. The occasion is the 25th anniversary of our operational timepieces. It all began in 1997 with the now legendary EZM 1 – a chronograph that set standards in terms of functional performance and clear readability. No wonder, since it was developed by us for professional users who have to rely unconditionally on their watch, because mission success and sometimes human lives depend on it. This refers to the Central Customs Support Group (ZUZ), a special unit subordinate to the Customs Criminal Investigation Office, comparable to a special police task force (SEK).

Foto Sinn

The form follows the function

With this founding clock, the development DNA for all subsequent operational timepieces was described: Construction exclusively according to the conditions of use, i.e. form follows function. Whether pilots, divers, firefighters, emergency medical technicians, rescue forces, special units of the German Federal Police such as the GSG 9 or the Naval Special Forces Command (KSM): we have developed each mission timekeeper exactly according to this premise based on individual requirements. Cooperation with experts is very important here – in other words, with those who actually use the watches. Especially since the conditions in which our mission timers have to prove themselves are as varied as they are challenging. These can be wetness, magnetism, extreme heat and cold as well as strong temperature changes, but also vibrations, shocks, impacts and aggressive liquids such as salt water or disinfectants. Often enough, everything comes together at once. In short, our mission timers have to withstand a lot – especially when the going gets tough.

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Focusing on the Essentials – Sinn EZM 1.1 S 25th Anniversary Mission Timer Limited Edition

Because they are equipped with corresponding functions due to their specific operational requirements, no two operational timepieces are alike in the result. Nevertheless, there is a common thread in construction and design, a principle that applies to all of them: concentration on the essentials combined with excellent readability and fast timekeeping. Incidentally, these are virtues that also please watch lovers who do not necessarily have to deal with life-threatening missions in their everyday lives. Rather, they appreciate the fact that a watch like the EZM 1.1 S is a precise, reliable and extremely robust timepiece.

Foto Sinn

Technical Data

Mechanical Movement

  • SINN Movement SZ01
  • Self-winding mechanism
  • 28 bearing jewels
  • 28,800 semi-oscillations per hour
  • Seconds stop function
  • Anti-magnetic as per DIN 8309


  • Case made of stainless steel, bead-blasted
  • Sapphire crystal glass in front, anti-reflective on both sides
  • Case back screw-fastened
  • Crown screwable
  • Meet the technical requirements for waterproofness, as set out in standard DIN 8310
  • Waterproof and pressure-resistant to 20 bar
  • Low pressure resistant


  • Hours, minutes
  • Date display
  • 60-minute stop function from the dial centre
  • Chronograph
  • Pilot’s bezel with luminous key mark

SINN Technologies

  • Black Hard Coating on a TEGIMENT Technology basis
  • Ar‑Dehumidifying Technology enhances functional reliability and freedom from fogging
  • Functionally reliable from –45°C up to +80°C
  • Captive bezel
  • Push-pieces with D3-System

Dimensions and Weight

  • Case diameter: 43 mm
  • Band lug width: 22 mm
  • Case thickness: 16,4 mm
  • Weight without strap: 106 gramme

Dial and Hands

  • Mission timer design for optimal readability
  • Matte black dial
  • Indices coated with luminescent colour
  • Hour and minute hand coated with luminescent colour
  • Stopwatch minute and stopwatch second hand coated with luminescent colour
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  • 3 years

Gallery Sinn EZM 1.1 S – 25th Anniversary Mission Timer – Photos Sinn

Prices & Delivery Times

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