The new Sinn EZM 12 was de­signed for use in air res­cues. We put this new­est mis­sion timer to the test.

WatchTime - - CONTENTS - By Martina Richter

| 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.

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