Tru-Beat movement with dead-beat seconds complication (ticking rather than sweeping). Cal. 1030 base with added dead-second module using spring-loaded gear mechanism. Produced briefly in 1950s-60s, rare due to limited production and many units converted to standard 1030 during service. Used in ref. 6556.
Movement Type
Automatic
Jewel Count
25 jewels
Power Reserve
48h
Frequency
18,000 vph (5 Hz)
Diameter
28.5mm
Height
6.47mm
Rotor Type
central_rotor
Winding
automatic_bidirectional
Shock Protection
kif
