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Sinn



157 1990's Ref. 157.ezm-4 Achilles

Sinn







Brand: Sinn
Model: EZM 4 “Achilles”
Reference number: EZM 4
Year of production: 1990s
Case material: Stainless steel
Caliber: Lemania 5100 automatic
Bracelet material: Stainless steel
Bracelet/Strap: Bracelet
Clasp/Buckle: Folding clasp
Dimensions: approx. 40 mm
Gender: Men
Dial: Black
Condition: Excellent
Functions: Time, Date, Day, Chronograph, Pulsometer
Signed: Yes

The Sinn EZM 4 “Achilles” stands as a true representation of a professional-grade tool watch from the 1990s. Specifically designed for emergency personnel such as firefighters, doctors, and paramedics, it perfectly embodies Sinn’s philosophy of durability, legibility, and functional precision. Its distinctive left-hand configuration, with crown and pushers positioned on the left side, enhances ergonomics and minimizes the risk of accidental impacts during intense use. The black multi-colored dial offers excellent readability and features a pulsometer scale—essential in medical scenarios—along with day and date indications in German. Powering the watch is the legendary Lemania 5100 automatic movement, celebrated for its robustness and shock resistance. The satin-finished stainless steel case, approximately 40 mm in diameter, paired with its original bracelet, completes a highly technical timepiece that is increasingly appreciated by collectors for its authenticity and purpose-driven design.

Case: round stainless steel case with a matte finish, engineered for durability in extreme environments. The screw-down caseback ensures protection and water resistance. The left-hand layout is a hallmark Sinn feature, enhancing ergonomics and operational safety.

Dial: black dial with a highly functional multicolor layout, including a pulsometer scale (“PulsSchläge”). Tritium lume has aged into a warm creamy tone. Features include chronograph register and German day-date display.

Movement: the Lemania 5100 is one of the most iconic and durable automatic chronograph movements ever made. Designed for professional use, it is renowned for its shock resistance and reliability. Widely used in military and tool watches, it remains highly collectible today.


 

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Rif:AC-00002
TypeChrono, Special functions
Year1990
Condition4.Good
ReferenceEZM4
CaliberLEMANIA 5100
MovementAutomatic
MaterialSteel
DialNero
BraceletSteel


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The watches for sale are not new from the factory, so they may have very little wear, they are scrupulously checked for condition and originality before being put on sale and sold as shown in the images unless otherwise specified.
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