Lang & Heyne Caliber VI

Caliber VI is Lang & Heyne's current main production manual-winding movement, derived from Caliber V. It operates at 18,000 vph with a power reserve of approximately 55 hours. The movement features a distinctive trigonal bridge architecture and incorporates traditional craftsmanship: brass components with an 18th-century brush treatment and gold plating, hand-engraving, 14k gold gear trains, diamond endstones, and a swan-neck regulator. The caliber is used in the Friedrich II (steel, time-only) and Friedrich III (39.2mm rose gold dress watch).