When it comes to its features, this diving chronograph is one of the most traditional and yet technically advanced timekeeping instruments.

The EZM 13.1 thus knows exactly what matters during use: a focus on the key essentials in terms of outstanding readability. To this end, we have integrated a factory modification with high functional value into the SINN chronograph movement SZ02. To enable the elapsed times to be read quickly and intuitively, the EZM 13.1 features a 60-minute counter at 6 o'clock instead of a (generally customary) 30-minute counter. It is distinguished by an optimised dial design. To enable clearer readability, the Arabic numerals have been omitted on the EZM 13.1. This adds an optical enhancement to its technically functional focus.

For the highest levels of mechanical stability and durability against external influences, we have equipped the EZM 13.1 with a technology package consisting of Magnetic Field Protection, Ar-Dehumidifying Technology and Temperature Resistance Technology. The independent classification company DNV verifies and certifies the water resistance and pressure resistance of the EZM 13.1 as well as its functionality in accordance with the European diving equipment standards.

Conclusion: The EZM 13.1 is primed and ready for its first use on your wrist!

SINN movement SZ02 with 60-minute stopwatch display
Case made of stainless steel, bead-blasted
Tested based on European diving equipment standards and certified by DNV
Waterproof and pressure-resistant to 500 m diving depth (= 50 bar), certified by DNV
Ar-Dehumidifying Technology enhances functional reliability and freedom from fogging
Magnetic Field Protection up to 100 mT (= 80,000 A/m)
Functionally reliable from –45 °C up to +80°C
Captive diver's bezel with minute ratcheting
Crown on the left side of the case to prevent pressure on the back of the hand
Sapphire crystal glass
Mission timer design for optimal readability
Low pressure resistant

Mechanical Movement

SINN Movement SZ02
Self-winding mechanism
26 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309

Case

Case made of stainless steel, bead-blasted
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened, nickel-free
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Waterproof and pressure-resistant to 500 m diving depth (= 50 bar), certified by DNV
According to the technical demands for the diving norm DIN 8306
Tested based on European diving equipment standards EN 250 / EN14143 and certified by DNV
Low pressure resistant

Functions

Hours, minutes, subsidiary seconds
Date display
Chronograph with 60-minute stopwatch display
Diver’s bezel with minute ratcheting and luminous key mark

SINN Technologies

SINN movement SZ02 with 60-minute stopwatch display
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
Magnetic Field Protection up to 100 mT (= 80,000 A/m)
Captive bezel
Push-pieces with D3-System

Dimensions and Weight

Case diameter: 41mm
Band lug width: 20mm
Case thickness: 15mm
Weight without strap: 98g

Dial and Hands

Mission timer design for optimal readability
Matte black dial
Indices coated with luminescent colour
Hour, minute and second hand coated with luminescent colour

Warranty

3 years

About Sinn

Sinn Watches was founded in 1961 and has long been a big name in horology. The brand was originally focused on producing navigation clocks for cockpits, and this design is reflected in their collection of pilot watches decades later. Sinn promises uncompromising functionality in their watch collections, even in the most demanding conditions. Thanks to industry leading technologies such as Ar-Dehumidifying and antimagnetic construction, Tegiment steel hardening and temperature stabilized movements. It’s not surprising then, that Sinn is praised for their high-quality movements and materials and loved by collectors for their accuracy in extremely adverse conditions.

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