Lemania - HS9 A Fine and Rare Stainless Steel Military Chronograph with Signed Caseback Diving Watches The 497 automatic caliber is

The 497 automatic caliber is powered by a bumper rotor and LeCoultre designed the crown under the watch

The Lemania 15 CHT movement is fitted with a self-compensating Breguet hairspring

In 1866 the company started to produce their own movements

This A3648 extremely rare model

Manifacturer - ZenithYears - 1970sMovement – Zenith El Primero 3019 PHC

Lemania - HS9 A Fine and Rare Stainless Steel Military Chronograph with Signed Caseback Diving Watches The 497 automatic caliber isThe present Lemania HS9 is a milestone of the Military Assigned Chronographs and offers an exquisite opportunity for watch collectors to acquire a piece of excellence and history. The HS \9 on the caseback stays for "Hydrographic Service" and the "9" indicating it is a chronograph. The Lemania 15 CHT movement is fitted with a self compensating Breguet hairspring, column wheel chronograph mechanism and 17 jewels. The Monopusher (the single button at 2