Angelus Instrument de Vitesse Ivory White

The Angelus Instrument de Vitesse Ivory White, reference 0CHBS.I01A.V010S, uses a single chronograph hand within a 39 mm steel case, 9.27 mm thick. The domed ivory-white dial has a peripheral tachymeter scale and graduated minutes circle beneath a domed sapphire crystal. A midnight-blue nubuck calfskin strap with a steel pin buckle is fitted to this La Fabrique model, a limited edition of 25 pieces. Hand-wound calibre A5000 has 23 jewels, a power reserve of 42 hours and a frequency of 21,600 vibrations per hour. The case carries a water-resistance rating of 30 metres, with a see-through case back. A crown-mounted push-piece controls the one-minute timing mechanism, which has no totalisers.