Franck Muller Vanguard Casablanca (time-only) Ref. V 43 SC DT CASA Ref. V 41 SC DT CASA Diameter: 41 mm by 49.95 mm, or 42.5 mm by 52.7 mm Height: 12.2 mm, or 12.6 mm Material: Steel Crystal: Sapphire Water resistance: 30 m Movement: FM 800-DT Features: Hours, minutes, seconds, and date Frequency: 28,800 beats per hour (4 Hz) Winding: Automatic Power reserve: 42 hours Strap: Rubber covered in alligator leather