Patek Philippe 5370P-011 is a dedicated split-seconds chronograph that focuses entirely on precision timing, presented in a platinum case with a handcrafted grand feu enamel dial. This model is distinguished by its commitment to traditional craftsmanship while delivering advanced chronograph functionality. The enamel dial not only enhances visual depth but also reflects the artisanal expertise that defines Patek Philippe’s approach to high-end watchmaking.

Mechanically, the 5370P is engineered to deliver flawless split-seconds performance, allowing for the measurement of multiple intervals with exceptional accuracy. Unlike more complex multi-complication watches, this reference prioritizes purity in chronograph execution, making it particularly appealing to enthusiasts who value technical precision. The platinum case reinforces its exclusivity, positioning the 5370P as a refined and highly collectible timepiece with enduring significance in the world of horology.

Patek Philippe Split-Seconds Chronograph Ref. 5370P-011

Model: Split-Seconds Chronograph
Reference: 5370P-011
Collection: Grand Complications
Case Material: Platinum
Case Diameter: 41 mm
Case Thickness: 13.56 mm
Crystal: Sapphire crystal
Case Back: Interchangeable solid platinum and sapphire-crystal case backs
Water Resistance: 30 m

Dial: Blue Grand Feu enamel on an 18K gold dial plate, with applied white-gold Breguet numerals and white-gold leaf-shaped hands with luminous coating. White printed tachymeter scale; instantaneous 30-minute counter at 3 o’clock and subsidiary seconds at 9 o’clock. (Patek Philippe)

Movement: Patek Philippe Calibre CHR 29-535 PS
Movement Type: Manually wound mechanical split-seconds chronograph
Movement Diameter: 29.6 mm
Movement Thickness: 7.1 mm
Components: 312
Jewels: 34
Power Reserve: Minimum 65 hours with chronograph stopped
Frequency: 28,800 semi-oscillations/hour (4 Hz)
Balance: Gyromax®
Balance Spring: Breguet
Chronograph Construction: Two column wheels with horizontal wheel clutch
Hallmark: Patek Philippe Seal (Patek Philippe)

Functions: Central hours and minutes; central sweep chronograph and split-seconds hands; instantaneous 30-minute counter; subsidiary seconds; tachymeter scale.

Controls: Chronograph start/stop at 2 o’clock; chronograph reset at 4 o’clock; split-seconds start/stop via pusher integrated into the crown at 3 o’clock. (Patek Philippe)

Strap: Hand-stitched shiny blue alligator leather with large square scales
Clasp: Platinum fold-over clasp

Reference Variation: The 5370P-011 is the blue Grand Feu enamel configuration of the 5370P family. The earlier 5370P-001 features a black Grand Feu enamel dial, while both references use the same CHR 29-535 PS manually wound split-seconds chronograph calibre.