Speake-Marin SMA01

The SMA01 is an automatic movement from Swiss independent Speake-Marin, introduced in 2015 as the manufacture's first in-house caliber. It operates at 28,800 vph with a 52-hour power reserve and 31 jewels, featuring an integrated micro-rotor and a small seconds counter at the 1:30 position. The openworked architecture reflects Speake-Marin's distinctive design language for the One & Two collection. The caliber remains in production.