In 1997 Sinn introduced their first mission timer, a chronograph with a unique central 60-minute counter with excellent legibility and durability in all conditions. “The mission timer made by professionals for professionals,” so to speak, according to the company’s press release.

This month, as an homage to the original EZM 1 from 1997 the EZM 1.1 Mission Timer is being introduced in a limited quantity of 500 numbered pieces to mark the 20 year anniversary.

Crafted in stainless steel and hardened by the company’s Tegimented process which makes the exterior extremely resistant to scratches, the case measures 43 mm x 16.4 mm and has been bead-blasted for a matte finish. The lug width is 22 mm, the watch weighs 106 grams without a strap, and water-resistance is 200 meters.

Additionally, the case features Sinn’s Ar-Dehumidifying Technology which prevents fogging and allows the watch to function reliably from –45°C up to +80°C.

One special feature of the chronograph is the crown and push-piece on the left side of the case to prevent pressure on the back of the hand and keep the watch from getting caught, even in time-critical situations.

Sinn states that “Wristwatches are also an important piece of equipment for other professionals. In addition to the aforementioned ZUZ, these include pilots, divers, firefighters, emergency doctors, rescue workers, special units of the German police force such as the GSG 9 and Germany’s commando frogman force KSM (Kommando Spezialkräfte der Marine). It is for these professional users, who are very often deployed to protect their fellow citizens, that we have been developing mission timers for the past 20 years. From the EZM 1 to the EZM 16, all watches are strictly designed to meet the demands of a defined mission.”

The EZM 1.1 Mission Timer is powered by caliber SZ01 which is based on the Valjoux 7750 with 28 jewels and modified to power the center-mounted 60-minute chronograph stop hand. According to Sinn, “This makes it even easier and quicker to record stop times more accurately. The new design is modeled on the clear and precise readability of the renowned Lemania 5100 movement, which is no longer available.”

Like on the original there is a pilot’s bezel with minute ratcheting that allows the wearer to countdown or record cumulative times. The hands and marking are all highly legible and in white, and the non-essential markings are in red.

(Ref. Art-Nr. 506.010) The retail price is $4800.

Learn more at Sinn.

Posted by:Jason Pitsch

Jason is the founder of Professional Watches and specializes in writing, product photography, and digital marketing.