Mechanical self-winding movement. Caliber 324 S C FUS. Dual time zone mechanism indicating local and home time. Local and home day/night indication in apertures. Local date by hand. Sweep seconds hand.
Blue varnished, gold applied numerals with luminescent coating. Local time hand: baton-style in blued white gold with luminescent coating. Home time hand: skeletonized baton-style in white gold white lacquered.
White gold. Sapphire-crystal case back. Water-resistant to 60 m. Diameter: 37.5 mm. Height: 10.78 mm.
Calfskin, shiny navy blue (original fitting). Calfskin, vintage brown (additional strap). Clevis prong buckle.