
The HMC 327 small seconds calibre features traditional finishing, a minimum three-day power reserve, and hacking seconds. It utilizes a silicon pallet fork and escapement wheel set with rubies to minimize wear. The 32.0 mm by 4.4 mm in-house movement includes an off-centre seconds dial, power-reserve indicator, Moser gear teeth, and an original Straumann Hairspring® with a stabilised Breguet overcoil.