Introducing the Sinn EZM 9, EZM 13, and 6052 Frankfurt Calendar Chronograph


Sinn should need little introduction to regular readers here at worn&wound.  We’ve covered a number of watches from the brand over the last couple of years, and we’ve always been impressed with the quality of watches from the German company.  Like last year, Sinn debuted a handful of new models at Baselworld, and today we’ll take a look at three of the more exciting pieces.  The first two are the newest members of the Einsatzzeitmesser (EZM, roughly “Mission Timer” in English) line, and the third features a unique new calendar complication.  Let’s take a look.


On the heels of last year’s EZM 10 pilot chronograph, Sinn brings forward another EZM pilot watch, the EZM 9 TESTAF.  The EZM 9 is a 3-hand, time and date only pilot’s watch, designed for flight crew members who need a sturdy watch to handle the rigors of flight but do not need the chronograph functionality of the EZM 10.  The new watch shares many of the same design features as its earlier counterpart.


The 44mm case is made of Sinn’s highly-praised tegimented titanium, designed to make it strongly resistant to dings and scratches.  The case features a large crown and a tall, chunky, rotating bezel, both of which are designed to be easily operable while wearing flight gloves.  The bezel insert is scratch-resistant sapphire and features a 60-unit countdown ring.  Inside, it houses a Sellita SW200-1 automatic movement which hacks for down-to-the-second timing syncing.

The movement is protected from moisture by Sinn’s Ar-Dehumidifying Technology (which is also designed to prevent fogging inside the watch at decreased atmospheric pressures), and it’s stabilized by Sinn’s Temperature Resistance Technology, which is designed to give the watch a wide operating temperature range of -45°C to 80°C.  The watch’s 200m water resistance should keep the insides dry in just about any situation you find yourself.


Just as its predecessor, the EZM 10, the EZM 9 carries a TESTAF certification, documenting that each watch has undergone specific testing to ensure it meets the high performance demands needed to be a functional pilot’s watch.  The watch will be delivered with a choice of leather strap or titanium bracelet.  The EZM 9 is sure to catch the attention of many professional pilots looking for a sturdy and functional 3-hand watch.

The EZM 9 is available soon from WatchBuys for $3,940.

EZM 13

The other new addition to the EZM family debuted at Baselworld this year is the EZM 13.  This watch does the opposite of what the EZM 9 did to the EZM 10 – it adds a chronograph function to the current 3-hand, time and date only model, the EZM 3.  Again, as with the EZM 9 / EZM 10 relationship, the EZM 13 shares most of its design features with the current model, with the welcome addition of a stopwatch.


The case is matte-finished 316L stainless steel and comes in at a very wearable 41.5mm.  It carries a water resistance certification of 500m, so it will stay alive far deeper than you will.  The case also protects the watch from magnetic fields of up to 80,000 A/m.  If you find yourself needing to operate the chronograph at depth, the EZM 13 has you covered – Sinn designed the pushers specifically to be usable at depth without altering the water resistance.  Those pushers and the large, screw-down crown are located on the left side of the watch, as is the case with many of Sinn’s dive watches.

Inside the case, you’ll find a modified Sinn SZ02 automatic chronograph movement.  This movement typically has a 30-minute chronograph elapsed time counter at 6:00, but here, Sinn engineers have regeared the watch to make that 6:00 subdial measure a full 60 minutes worth of elapsed time.  The watch features the same dehumidifying technology seen in the EZM 9 above, so owners can rest assured their watch has remained water-tight or know when it’s ready to head back to Sinn for a tune-up.  The watch ships with a rubber dive strap or a stainless steel bracelet.  The EZM 13 has been a few years in the making, and many divers are ready to finally get their hands on it.


The EZM 13 is available soon from WatchBuys for $2,960.

6052 Frankfurt Chronograph Calendar

This final watch is a bit of a departure from the other two, and probably from most of the rugged Sinn tool watches our readers are familiar with.  Over the past few years, Sinn has been releasing a line of business watches called the Frankfurt Financial District series, taking inspiration from their home city of Frankfurt am Main, a major hub in the Germany and European financial industry.

The 6052 continues this series and is the most ambitious to-date.  Ambitious, in fact, because of its date.  The watch features a full calendar function, with day of the week, date of the month, month of the year, and – here’s the surprise – week of the year indications.  The 6-o’clock register displays the current week, 1-52, and is designed for business folks whose status and delivery dates are often reported in weeks.


The rest of the calendar functions are spread around the watch, with the date digits on a big outer ring indicated by a center-mounted hand, and the weekday and month text indicators inside the 12:00 register. The watch also features a standard 60-minute chronograph, for when you need to time something in minutes instead of weeks.  All this functionality is powered by a Sinn SZ03 automatic movement, which we get to see through the sapphire crystal caseback.  The rotor is engraved with the Frankfurt skyline, an attractive touch and a nice nod to Sinn’s home city.  It all sits inside a 41.5mm polished stainless steel case.  With the full calendar feature, good looks, and wearable size, the 6052 Frankfurt Chronograph Calendar is sure to be a hit.

The 6052 Frankfurt Chronograph Calendar is available soon from WatchBuys soon for $4,870.

Although these three are not the only new watches Sinn showed us at Baselworld this year, they’re a good example of what Sinn is bringing to the  table this year.  Keep an eye out here for more Sinn news and reviews soon, and head over to WatchBuys for more information about these watches and the rest of the Sinn lineup.

by Brandon Cripps

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Brandon was raised in a military family, the son of an Army pilot and engineer. An early fascination with all things mechanical developed into a love of watches that remains today. Brandon holds a pair of degrees in experimental psychology and works as a human factors test engineer for Army aviation systems.