The new Sinn EZM 12 was designed for use in air rescues. We put this newest mission timer to the test.
| e new Sinn EZM 12 was designed for use in air rescues. We put this newest mission timer to the test.
—For the past 20 years, Sinn has developed E ins atzze it mess er –“mission timers” also known as“EZM ”– for specific applications. When we first saw the newest version, the EZM 12, the bright orange color, two crowns on the right side of the case, a four-rotor seconds hand and a plethora of tracks met us head on. e many tracks don’t appear to overwhelm the EZM 12 – quite the opposite. e 44-mm case offers ample space for the circular numerical systems without detracting from their legibility. On the other hand, the watch doesn’t appear nearly as impressive as it would from a technical point of view because of the numerous tracks on the dial, inner ring and rotating bezel. at’s our first impression anyway.
e Tegiment-treated case actually measures 54 mm from 12 o’clock to 6 o’clock. e middle section of the hardened and bead-blasted case transitions seamlessly into the lugs. Its rotating bezel is also treated with a hard black coating on the Tegimented base. is special treatment provides effective protection from scratches and prevents the PVD coating from flaking away from the base material. Only the nickel-free threaded caseback is not Tegimented. e entire watch is guaranteed to be water resistant to 200 meters and has antimagnetic protection up to 80,000 A/m. e argon dehumidifying system ensures increased functionality
at temperatures ranging between -45 and +80 degrees C. e dehumidifying capsule has an unusual placement in the crown at 2 o’clock. An orange ring on the crown color-codes its function to match the inner rotating ring.
The shape of the crown is also unusual, with six indentations like a star knob. Described in a German DIN standard, star knobs are generally used on shut-off valves like those on propane gas tanks. is particular design on the crown provides an excellent grip. It is also used on the crown at 4 o’clock, which is employed to wind the watch and to set the date, day of the week and time.
e crown at 2 o’clock is used to manipulate the rotating inner ring. It can be smoothly moved in either direction. With the orange section of the minutes track, it is used to track the “platinum 10 minutes,” and the black-to-orange background is used to track the “golden hour.” is application links the EZM 12 to the emergency rescue teams for which it was designed.
Decisive action and sometimes even lifesaving measures must be taken within the first 10 minutes of a rescue mission. And the declared goal of the “golden hour” is to transport the patient to a hospital within 60 minutes. With the EZM 12, it is simple to track this one-hour time period with precision by aligning the marker on the rotating inner ring with the minutes hand. anks to the star-shaped crown and the smoothly turning, bidirectional ring, this is all easy to perform manually.
It is also possible to set additional short intervals – like the time until the emergency helicopter lifts off – with the downward-counting outer ring, which also has six grooves and is easy to grasp. e triangular marker
The outer rotating ring is easy to grasp and use as a countdown bezel for timing short intervals.