Following up on such horological milestones as 2014’s flying tourbillon model, and last year’s pocketwatch with five-minute repeater, Baume & Mercier adds another notable timepiece to its vintage-inspired Clifton collection. The Clifton Manual 1830 appears simple on the outside, but inside is an all-new proprietary movement, the first to be equipped with an exclusive, accuracy-improving system called TwinSpir.
Baume & Mercier Clifton Manual 1830 – front
Inside the watch’s 42-mm polished and satin-finished rose-gold case is the new manual-winding Caliber BM12-1975M, designed by Baume & Mercier in collaboration with the movement specialists at Manufacture Horlogerie Valfleurier. The movement, which has 18 jewels and a 28,800 vph frequency and boasts a power reserve of 90 hours, is equipped with the exclusive TwinSpir technology, which incorporates a number of technical innovations developed by the Research & Innovation department at Richemont, parent company of Baume & Mercier and a number of other luxury watch brands.
The TwinSpir technology is centered around a newly developed hairspring with a composite structure combining two layers of silicon, alternatively oriented and bound through an extra layer of silicon dioxide, which also acts as a thermo-compensating element. Combined with the movement’s other noteworthy technical element ? a newly designed, inertia-type balance wheel? the technology has several benefits, ...