Patek Philippe Calatrava Diamond Ribbon Joaillerie - 36.5 mm - White Gold - Fully Set With Diamonds Dial - 4978/400G-001 39 transparent sapphire-crystal disk for sky

transparent sapphire-crystal disk for sky chart and Milky Way

month and date by annual calendar

MFG Reference # 01 754 7741 3165-07 8 20 01

3 DR1 self-winding movement with date

Patek Philippe Calatrava Diamond Ribbon Joaillerie - 36.5 mm - White Gold - Fully Set With Diamonds Dial - 4978/400G-001 39 transparent sapphire-crystal disk for sky36. 5 mm white gold case, 8. 23 mm thick, sapphire crystal back, fully set with diamonds dial with blued gold applied numerals, caliber 240 ultra thin self winding movement, approximately 48 hours of power reserve, shiny dusk blue alligator strap with square scales, diamond set prong buckle. Water resistant to 30 m.