The EZM 10 is the result of an ambitious development project that was initiated in 2003 by Sinn. The mission was to create a mission timer that optimally implemented the demands made on a pilot’s watch in terms of movement, dial and technology.
Easy legibility is one major reason pilots rely on mechanical watches. That is why these chronographs are made using the SINN SZ 01 movement that facilitates precise time measurement and excellent readability.
The SZ 01 features a 60-minute jump minute counter in the centre of the dial. This technical innovation has two benefits: For one thing, 60 instead of the conventional 30 minutes are counted in one sweep of the hand. In addition, the minute counting hand extends across the entire radius of the dial, making it easy to tell how much time has passed.
Orange lights visible even in daylight indicate the functions of the chronograph. This makes it possible to read off stopped times even in the dark or in ultraviolet light, which is often used in cockpits. To ensure optimal functionality, the backwards-counting rotary pilot’s bezel with minute ratcheting has a luminous marking. Like all Sinn pilot’s watches, the EZM has a captive bezel, but with an added luxury: The bezel insert is made of high-quality sapphire crystal glass.
But excellent readability is not the only aspect than makes the EZM 10 such a valuable and useful mission timer. The timepiece also boasts excellent SINN technological features such as DIAPAL for a lubricant-free escapement, Ar-Dehumidifying Technology for better resistance to humidity and freedom from fogging, as well as temperature resistance technology that ensures workability at temperatures from -45 °C to +80 °C.
And the large-format push-pieces with Black Hard Coating on a tegimented surface are also extremely user friendly. They facilitate convenient operation of the chronograph, even with gloves on. The push-pieces are attached without screws and effectively sealed using specially developed D3 system.
The case diameter of 46.5 mm gives the watch a formidable appearance, yet it is still comfortable to wear – not least because of its bead-blasted case made of robust titanium with TEGIMENT technology, which is used here for the first time in a SINN watch. The crystal is made of valuable sapphire crystal glass with anti-reflective coating on both sides.
Mechanical Movement: SINN Movement SZ01 Self-winding mechanism 29 bearing jewels 28,800 semi-oscillations per hour Seconds stop function
Shock resistant as per DIN 8308 Anti-magnetic as per DIN 8309
Case made of titanium, bead-blasted
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened
Water-resistant as per DIN 8310
Pressure-resistant up to 20 bar (200 m diving depth)
Low pressure resistant
Hours, minutes, subsidiary seconds
Chronograph with 60-minute stop function from the dial centre
Captive pilot’s bezel with minute ratcheting
Sinn Movement SZ01 DIAPAL – lubricant-free escapement
TEGIMENT Technology Push-pieces with Black Hard Coating on a TEGIMENT Technology basis Captive bezel sapphire glass insert
Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging Temperature resistance technology, therefore functionally reliable at temperatures from -45 °C up to +80°C Push-pieces with D3-System
Dimensions and Weight
Case diameter 3h-9h: 46,5 mm
Case diameter 6h-12h: 44 mm
Band lug width: 22 mm
Case thickness: 15,6 mm
Weight without strap: 95 gramme
Dial and Hands
Matte black dial Indices coated with luminescent colour
Hour and minute hand coated with luminescent colour
Stopwatch second hand coated with luminescent colour
Pilot’s bezel with luminescent colour Chronograph function with daylight luminous paint