CORUM, Lady's Choice Stunning white gold (750), sapphire, ruby and diamond transformation wristwatch. Slightly domed rectangular case, bezel set with brilliant-cut diamonds. Diamond-paved dial, signed, mute indexes. Quartz movement, signed and numbered 416551 calibre 820. Screw-down caseback, signed and numbered 625369 64.300.69 H148. Case flanked by two rotating rollers set with rail-set sapphires, rubies or baguette-cut diamonds, punctuated by gadrooned rings, and allowing choice of roller color. Articulated bracelet with square links entirely paved with diamonds, linked by rotating rollers paved on one side with brilliant-cut diamonds in seed-setting and on the other side with baguette-cut sapphires in rail-setting, and centered with small rollers in the same pattern. Scale clasp. Gross weight: 164.3 g. Case size: 33 x 24 mm. Wrist circumference: 18 cm.