The new blue face revitalizes the Patek Philippe tradition of grand feu enamel dials, providing the Ref. 5370 Split-Seconds Chronograph with a highly contemporary touch. Its displays are eminently legible as befits a technical instrument. The fascinating movement stands out with a classic architecture, featuring trailblazing innovations and a redesigned rattrapante mechanism. The elegant platinum case is graced with a concave dial and flanks with satin-finished recesses.

Grand Feu blue enamel, gold applied Breguet numerals. 18K gold dial plate. Tachymeter scale. Platinum. Case diameter: 41 mm. Height: 13.56 mm. Water-resistant to 30 m. Interchangeable solid and sapphire crystal case backs. Alligator leather with square scales, hand-stitched, shiny dusk blue. Fold-over clasp. Split-Seconds chronograph. Instantaneous 30-minute counter. Split-Seconds chronograph. Instantaneous 30-minute counter. Seconds subdial.

Split-Seconds chronograph. 30-minute counter. Seconds subdial. Diameter: 29.6 mm. Thickness: 7.1 mm. Number of parts: 312. Jewels: 34. Power reserve with the chronograph disengaged: min. 55 hours - max. 65 hours. Balance: Gyromax^®. Vibrations/hour: 28 800 (4 Hz). Balance spring: Breguet. Hallmark: Patek Philippe Seal.