Chanel J12 Black Function Moon Phase (H3407). Automatic movement with 42 hour power reserve and central seconds hand and moon phase indicator at 6 o'clock. Black stamped guilloche; dial and moon phase counter in glass aventurine with 63 diamonds (0.34ct), 38mm white ceramic and steel case with 54 diamonds set bezel (1.42ct). Sapphire crystal front and solid case back. Water resistant to 50M. White ceramic bracelet with triple-folding clasp.