Girard-Perregaux 1966 40mm

The Girard-Perregaux 1966 40mm, reference 49555D11A1A1-BB60, has a 40 mm steel case with an entirely polished finish. The case measures 8.9 mm thick, with curved lugs and a sapphire display back. Self-winding calibre GP03300 has 27 jewels and a power reserve of 46 hours. The movement operates at 28,800 vibrations per hour (4 Hz), with Côtes de Genève decoration on the oscillating weight. Sapphire front glass covers the hours, minutes, central seconds and date display. A black alligator leather strap has a steel pin buckle, and the case is rated to 30 metres.