VILLERET, 8 DAY POWER RESERVE, date and seconds, white gold, white cambered grand feu enamel dial, tone on tone engraved secret signature with JB initials between hour 4 and 5 and 7 and 8, movement decorated with Cotes de Geneve, white gold oscillating weight with honey comb pattern, sapphire caseback, self-winding, 42mm, black alligator strap