This Very Rare Platinum Platinum Patek Philippe Ref. 5370P-001 Grand Complications Split-Seconds Chronograph With Black Enamel Dial Is Complete. Accompanied with its original certificate of origin dated 2017, second case back, instruction manual, swing tag and presentation box. This exceptional example is unworn, remains factory sealed and comes from the original owner.

The 5370P-001 split-seconds chronograph is one of the three most difficult complications to master, alongside the tourbillon and the minute repeater. It takes a highly sophisticated mechanism to control the two chronograph hands, one of which may be stopped to measure an intermediate or lap time or retain a reference time while the other continues its course unaffected, even by fractions of a second. When released again, the split-seconds hand instantly catches up with the primary hand and the two stacked hands move on together.

The 5370P-001 is manually wound mechanical movement. Caliber CHR 29-535 PS. Seconds subdial. Tachymeter scale. The dial is a authentic black enamel, gold applied Breguet numerals. 18K gold dial plates. The case is platinum Interchangeable full back and sapphire-crystal case back. Water resistant to 30 m. Case diameter: 41 mm. Height: 13.56 mm and the alligator strap with square scales, hand-stitched, shiny black. Fold-over clasp.