Sinn Spezialuhren – Instrument Diving Watches EZM 3 S Black Steel 41mm - 2025
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Developed for professionals, the Sinn EZM 3 S is a mechanical mission timer designed to withstand the most demanding conditions.
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Its bold, black aesthetic is complemented by a suite of high-end technologies, including Magnetic Field Protection and Temperature Resistance. This is a watch built to perform reliably when absolute precision is essential.
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Diving missions under extreme conditions push both people and equipment to the limit – and often beyond. In icy depths, under massive pressure, or in near-zero visibility, absolute reliability is essential. For these kinds of professional operations, we developed the EZM 3 S: a mechanical technology basis that embodies the very essence of a Sinn watch like few others.
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At first glance, the EZM 3 S makes a bold statement: the Black Hard Coating combined with TEGIMENT Technology – used for the first time in this model series – gives it a strikingly technical profile. The colour contrast also significantly improves the readability of the diver’s bezel.
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The true SINN DNA is revealed inside the watch. Its high-end technological features offer maximum resistance and uncompromising functionality. Equipped with Magnetic Field Protection, Temperature Resistance Technology, and Ar-Dehumidifying Technology, the EZM 3 S delivers an impressive package of performance.
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The reduced mission timer design ensures perfect readability and time measurement – even in high-stress situations.
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Another clear sign of quality that earns the trust of professional divers: the EZM 3 S has been tested based on European diving equipment standards and has been certified by an independent institute. One thing is certain: you can rely on this watch – 100 percent.
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DNV has confirmed and certified the pressure resistance of the EZM 3 S model to a diving depth of 500 metres, as well as its temperature resistance and performance in accordance with European diving equipment standards EN250 and EN14143.
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Technical details
The Instrument Diving Watches
Model: Sinn EZM 3 S
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Reference: Art-Nr. 603.020
Case
Material: Stainless steel, bead-blasted, black
Diameter: 41.00 mm
Lug width: 20.00 mm
Thickness: 12.30 mm
Weight without strap: 81 gramme
Sapphire crystal glass in front, anti-reflective on both sides
Case back screw-fastened, nickel-free
Crown screwable
Meets the technical requirements for water-resistance, as set out in standard DIN 8310
Water-resistant and pressure-resistant to 500 m diving depth (= 50 bar), certified by an independent institute
According to the technical demands for the diving norm DIN 8306
Tested based on European diving equipment standards EN 250 / EN14143 and certified by an independent institute
Low pressure resistant
Dial and Hands
Matte black dial
Indices coated with luminescent colour
Hour, minute and second hand coated with luminescent colour
Mission timer design for optimal readability
Movement
Caliber SW200-1
Self-winding mechanism
Number of jewels: 26
Frequency: 28,800 semi-oscillations per hour
Seconds stop function
Anti-magnetic as per DIN 8309
Functions/Indications
Hours, minutes, seconds
Date display
Diver’s bezel with minute ratcheting and luminous key mark
Strap
Bead-blasted solid stainless steel bracelet with black hard coating and strap-length fine adjustment
🔒 Warranty • 3 years
🔴 Price : EUR 2'820 (metal bracelet) / EUR 2'190 (strap)💰
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Press Release - 2025
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SINN SPEZIALUHREN GMBH
Im Füldchen 5–7 • 60489 Frankfurt am Main
• Tel. +49 (0)69 / 97 84 14-0
• Fax +49 (0)69 / 97 84 14-201
• info@sinn.de
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