Made in Germany - Sinn EZM10 (mini review)

[LuvWatch]

Picked up a Sinn EZM10 from Maseman (Iain) earlier in the week and wanted to share some information and photo's.

I missed out on one a few years ago which was advertised on the forum, and though I was always on the lookout never took the plunge until last week.

I had a Sinn 142 with the Lemania 5100 which had the PVD case (below), still not sure why I moved it on, those cases are so comfortable on the wrist.




Hankering for another Sinn chrono the EZM10 I couldn't resist, as It will be my 60th birthday present to myself.

Why the Sinn EZM10: I love the dial layout, the addition of orange as a colour to the black and white and the technical additions to the watch which I will list below.

• Tested and certified to the Technical Standard for Pilot Watches (TESTAF) by the Aachen University of Applied Sciences
• Sinn SZ01 chronogaph movement
• 60-minute stop function from the dial centre
• 24-hour display
• Case made of titanium, bead-blasted
• Case made with TEGIMENT Technology and therefore especially scratch-resistant
• DIAPAL – the lubricant-free anchor escapement
• Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
• Functionally reliable from –45 °C up to +80°C
• Sapphire crystal glass
• Push-pieces with Black Hard Coating on a TEGIMENT Technology basis
• Captive pilot’s bezel with minute ratcheting and sapphire glass insert
• Pressure-resistant to 20 bar
• Low pressure resistant
• Mission timer design for optimal readability
• 5 years guarantee

Movement
The SZ01 movement is based on the Valjoux 7750 and has been specially developed by SINN. The development work began back in 2003.
The main priority in undertaking the redesign was to make the chronograph functions significantly easier to read off. Which is why we attached so much importance to finding a first-class technical solution to mounting the jump 60-minute stopwatch hand in the centre of the dial. This allows users to take accurate stop times even more quickly and simply. The clarity and distinct readability of this chronograph stem from the design of the well-known Lemania 5100 movement (credit Sinn).

WTF is DiaPal
SINN began its research on the DIAPAL Technology in 1995 with the idea of using diamondpallets to replace ruby ones. For conventional escapements, oil is required only to reduce friction between the ruby (pallet stone) and the steel (escape wheel). In the Swiss anchor escapement, a polished diamond surface proved to be a better friction partner than the ruby traditionally used for this purpose. Lubrication is no longer required for lasting accuracy and function. However, this combination still failed to produce acceptable oscillation amplitudes without lubrication. Thus, in 1995 SINN began testing numerous other material combinations for use in watch technology, and applied for the first patents in 2000 (credit Sinn).

Tegiment Technology
TEGIMENT Technology provides highly effective protection against scratches. The method is not, however, based on the application of a coating. Instead it is the surface of the material itself which is hardened by means of a special process, thereby creating a protective layer (“tegimentum” in Latin). The surface of any watch hardened using TEGIMENT Technology has a significantly greater level of protection against scratches than that afforded by the hardness of the base material (credit Sinn).

Ar-Dehumidifying Technology
Ar-Dehumidifying Technology solves a basic problem of mechanical watches: the aging of oils due to moisture in the air contained inside, or diffusing into, the watch. The movement is mounted in a nearly anhydrous atmosphere thanks to the three Ar-Dehumidifying Technology elements of drying capsule, EDR seals and protective gas filling. Aging processes and fogging of the crystal from sudden cold are prevented, and reliable functioning and accuracy are ensured.
Three technical elements:The Ar-Dehumidifying Technology is based on three technical elements: a drying capsule, EDR seals and a protective gas filling (credit Sinn).

Pushers
We only use hard coatings (known as PVD coatings) with TEGIMENT surfaces. Because only in this combination is it possible to achieve the high quality of our PVD paint coatings.
The TEGIMENT hardness profile is continuous. In other words, the high level of surface hardness transitions very gradually to the basic hardness of the material. This makes it possible for a PVD paint coating to be applied without risking the otherwise familiar peeling effect of the paint from the body of the case (credit Sinn).




Size
Across the bezel it is 44mm
Across the case including the crown it is 50mm
Lug to lug is is about 53mm
It is 15.50mm thick

Fits my big wrist just fine



The bracelet is very comfortable, the end links are solid and fit the case beautifully. Using hex screws for the links demonstrates another sign of the quality and finish.

With the pushers almost flat to the case it gives a symmetry to the case which could have been lost, and the lugs are quite short which gives the watch a compact finish.

It has Seiko levels of luminosity.

Overall a typically German engineered piece of kit, everything works flawlessly, and has a 5 year guarantee and has a great orange stitch leather strap to swap to.

Stock photo below



Thanks for reading
Derek

[Sinnlover]

Nice review
Thanks for taking the time
I have to admit I hovered (not hoovered) over this
The EZM10 will be my next Sinn
I have liked it since release.

[alphajet]

Lovely watch, congratulations.

I own the one you probably missed around five years ago now. Mine came with the orange stitched strap and I bought a bracelet from Neil at Chronomaster.

The watch still looks like new, the tegimented finish certainly does it's job.

Here's mine on a Tmefactors Nato.

[sweets]

Great watch, great review.
I have always maintained my core stable of Lemania 5100s (Tutima Commando II, Sinn EZM1 and a Lemania-branded one in the 142 case), so have never really considered the EZM10, as it seemed to repeat what I already owned. Also because I felt that the EZM10 had been subjected to so many weapons-grade technology "improvements" as to take it beyond the simple tool watch that the Lemania 5100 was intended for, and beyond the budget I was prepared to wear on my wrist.
But that doesn't make it any less of a watch, it is arguably the daddy of all tool chronographs. Well, mechanical ones at least.
D

[JGJG]

Excellent detailed review. Many thanks 👍

[Tenko]

My favourite Sinn, thanks for sharing your thoughts on it. Enjoy!

[benny.c]

Lovely watch, congratulations.

I own the one you probably missed around five years ago now. Mine came with the orange stitched strap and I bought a bracelet from Neil at Chronomaster.

The watch still looks like new, the tegimented finish certainly does it's job.

I think it was probably mine originally. It was a watch I wanted to try as soon as I saw the first few press photos emerge and it didn’t disappoint. Just a tiny bit too large for me at the time but every time I see one posted on here I always regret not giving it a little more time

[LuvWatch]

Great watch, great review.
I have always maintained my core stable of Lemania 5100s (Tutima Commando II, Sinn EZM1 and a Lemania-branded one in the 142 case), so have never really considered the EZM10, as it seemed to repeat what I already owned. Also because I felt that the EZM10 had been subjected to so many weapons-grade technology "improvements" as to take it beyond the simple tool watch that the Lemania 5100 was intended for, and beyond the budget I was prepared to wear on my wrist.
But that doesn't make it any less of a watch, it is arguably the daddy of all tool chronographs. Well, mechanical ones at least.
D

I agree, there is a certain cachet to the Lemania 5100 tool watch which most of us understand and love (

Technically the EZM10 is one of the most robust watches and being approved by 'TESTAF in the form of a technical standard, which stipulates all the key requirements that a wristwatch as a backup instrument should meet in modern aviation. It also developed the first standard for testing and certifying such a pilot watch with an extensive series of tests. At the suggestion and with the help of Sinn Spezialuhren, TESTAF was used shortly after its completion by the German Institute for Standardisation as a basis on which to develop a standard for pilot watches (DIN 8330-1/8330-2) for the first time. TESTAF can be viewed or downloaded free of charge at www.testaf.org' has set a benchmark.

[LuvWatch]

Lovely watch, congratulations.

I own the one you probably missed around five years ago now. Mine came with the orange stitched strap and I bought a bracelet from Neil at Chronomaster.

The watch still looks like new, the tegimented finish certainly does it's job.

Here's mine on a Tmefactors Nato.

Yes, I am sure I pm'd you about it at the time, glad you still have it

[Deeez Nuuutz]

Nice review and lovely looking watch. I would of snapped it up but was worried it would be too big on me so gave it a miss. I still kept coming back to the thread on numerous occasions though and was extremely tempted!

I’m still a little bit gutted so we’ll done!


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[LuvWatch]

Went into my local watch specialist (Robert Gatwood) shop this afternoon (Rolex, Omega etc) as I saw one of the limited edition Tissot Heritage 1973 (powered by the v7753) in the window.

The salesman was showing me the Tissot and I took off my Sinn EZM10, he made a comment about it, i then proceeded to tell him its features - 10 minutes later and once his glazed expression passed , I realised that just because you work in watch shop, you are not necessarily interested in them - I mistook his politeness for interest - will keep nerdy watch talk to the forum in the future

I thought the 1973 was quite a looker, and at £1700, not a bad price.