Girard-Perregaux 1966 40mm

The Girard-Perregaux 1966 40mm, reference 49555-11-131-11A, has a steel case measuring 40 mm across and 8.9 mm thick. Self-winding calibre GP03300 contains 27 jewels and offers a power reserve of 46 hours. The movement runs at 28,800 vibrations per hour (4 Hz), with Côtes de Genève on the oscillating weight. A sapphire crystal covers the silver opaline dial with central seconds and the date. A steel bracelet has a steel triple folding clasp. Rated to 30 metres, the entirely polished case has curved lugs and a sapphire display back.