Speake-Marin SMA05-1

The SMA05-1 is an automatic movement developed and manufactured by Speake-Marin, a Swiss independent watchmaker. Introduced in 2019, it remains in production as part of the proprietary SMA Openworked caliber family. The movement features an openworked design with a flying tourbillon positioned at 1:30, displaying hours and minutes. The flying tourbillon complication at this specific position distinguishes this caliber within the SMA Openworked series.