Angelus Instrument de Mesures Ivory White

The Angelus Instrument de Mesures Ivory White, reference 0CHDS.I01A.V1477S, is a one-minute monopusher chronograph with a 39 mm steel case, 9.25 mm thick. The case has a water-resistance rating of 30 metres, and the watch wears a tobacco calf leather strap with a steel pin buckle. A box sapphire crystal covers the ivory white dial, whose domed centre and outer edge join through a sloping intermediate section. The tachymeter scale takes a spiral form closest to the hands, and laser-cut markings give the dial depth. This La Fabrique model has a see-through case back and is a limited edition of 25 pieces. Hand-wound calibre A5000 runs at 21,600 vibrations per hour, with 23 jewels and a power reserve of 42 hours.