Buren 12 Chronomatic (Buren 1281) 13.75”’ automatic chronograph 60s 30min 12h cam switched 17 jewels f = 21,600 A/h power reserve 42h Spares might be available for this movement. Please contact us for availability. Related posts: Buren 11 Chronomatic (Buren 1281) Buren 14 Chronomatic (Buren 1281) Buren 280