HMC 342

The HMC 342 is an in-house manual-winding calibre measuring 34.0 mm in diameter and 5.8 mm in thickness. It operates at 18,000 vph and features a big date, Flash Calendar, central seconds, hacking seconds, a double barrel, the Double Pull Crown system, interchangeable Moser escapement, and a Straumann Hairspring® with a stabilised Breguet overcoil, with gold components and hand-finishing throughout.