HMC 321

The in-house hand-wound HMC 321 calibre measures 32.0 mm by 4.8 mm and operates at 18,000 vibrations per hour. It displays hours and minutes with an off-centre seconds hand, featuring a hacking seconds function, Moser-profile teeth, an interchangeable escapement, and a Straumann Hairspring® with a stabilized Breguet overcoil. The movement is hand-finished, includes a gold pallet fork and escapement wheel, and features a power-reserve indicator.