Ca. Ø51.5mm, ca. 100g, 18K white gold, signed back, No.70019 additionally engraved 154581, possibly an inventory number, precision lever movement, nickel-plated, Breguet dial, perpetual calendar, moon phase, moon age, Art deco hands, signed original box, white-gold chatelaine, intact, extremely rare. Aparable watch, also sold by Leroy & Fils Paris, was auctioned at Artcurial in 2011 and achieved a sensational price of almost 85,000€ (source: https:///go/1WX).