Case in 18k rose gold with delicately fluted caseband. Sapphire-crystal caseback. 39mm diameter. Dial in Grand Feu enamel. Age and phases of the moon. Power reserve indication. Self-winding movement, Cal. 591DRL. 38-hour power reserve. Swiss straight-line lever escapement in silicon. Balance spring in silicon. Balance frequency 4Hz. Also available in white gold. Also available with silvered gold dial.