Sinn EZM 4 Achilles

Mint condition Sinn EZM 4 Achilles Firefighters watch. It comes complete with box and papers and was originally purchase in 2005. Like the EZM 1 it has an inverted movement so the crown and buttons are on the left side of the watch making it less prone to snagging when in use and also makes it comfortable to wear as it does not dig into the wrist.

Mechanical Movement
Lemania 5100
Self-winding mechanism
17 bearing jewels
28,800 semi-oscillations per hour
Seconds stop function
Shock resistant as per DIN ISO 1413
Anti-magnetic as per DIN 8309

Case
Case made of stainless steel, bead-blasted
Sapphire crystal glass in front, anti-reflective on the interior
Case back screw-fastened
Crown screwable
Meet the technical requirements for waterproofness, as set out in standard DIN 8310
Pressure-resistant up to 20 bar
Low pressure resistant

Functions
Hours, minutes, subsidiary seconds
Date display
Day of the week display
Chronograph
Pulsometer scale

Dimensions and Weight
Case diameter: 40 mm
Band lug width: 20 mm
Case thickness: 15 mm
Weight without strap: 86 gramme

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