Breguet Classique Phase de Lune 7137

The Breguet Classique Phase de Lune 7137 (reference 7137BB/Y5/9VU) has a 39mm round case in 18K white gold with a sapphire caseback. The blue gold dial is hand-engraved on a rose engine and displays moon phase, power reserve, and date functions. It is powered by the self-winding Breguet calibre 502.3 DR1, offering 46 hours of power reserve, and is fitted to an alligator strap. The case is water-resistant to 30 meters (3 bar).