Patek Philippe Split-Seconds Chronograph Ref. 5370P-001, Platinum, Black Enamel Dial

A highly refined platinum split-seconds chronograph combining classical Patek Philippe aesthetics with one of the manufacture’s most celebrated modern hand-wound calibres.

The Patek Philippe Split-Seconds Chronograph reference 5370P-001 occupies a singular position within the contemporary production of the maison. Introduced in 2015, it marked an important moment for Patek Philippe as the first pure split-seconds chronograph to feature the in-house calibre CHR 29-535 PS without the addition of a perpetual calendar or other major complication. The result is a watch of unusual clarity and concentration: technically formidable, visually restrained, and entirely devoted to the art of chronograph construction.

Its 41 mm platinum case, measuring 13.56 mm in height, is both substantial and elegantly resolved. The concave bezel, sculpted lugs, oval chronograph pushers, and discreet diamond set between the lower lugs at 6 o’clock give the watch a presence that is unmistakably Patek Philippe — formal, balanced, and immediately recognisable. The crown-integrated split-seconds pusher preserves the purity of the case profile while underscoring the mechanical seriousness of the reference. Sapphire crystals to the front and exhibition back reveal the watch’s dual character: outward discretion, inward complexity. An interchangeable solid platinum caseback is also included.

The dial is one of the defining achievements of the model. Executed in genuine black enamel over a white-gold base, it carries a richness and visual permanence that sets it apart from conventional lacquered or painted surfaces. Applied white-gold Breguet numerals bring classical warmth and depth, while the white printed railway minute track and tachymeter scale provide crisp contrast and functional clarity. Leaf-shaped white-gold hands with luminescent coating, together with rhodiumed steel chronograph hands and white-gold counter hands, complete a composition of remarkable coherence. Few modern Patek Philippe chronographs combine such technical intent with such dial presence.

Powering the watch is the hand-wound calibre CHR 29-535 PS, one of the manufacture’s most admired modern chronograph movements. Comprising 312 components and 34 jewels, and running at 28,800 vibrations per hour, it offers approximately 55 to 65 hours of power reserve. Its architecture includes two column wheels, a horizontal clutch, and an instantaneous 30-minute counter, together with a series of patented refinements developed to improve precision, efficiency, and chronograph stability. Visible through the sapphire caseback, the movement is lavishly hand-finished and central to the appeal of the reference.

This 2015 example is offered with its Patek Philippe Certificate of Origin, additional caseback, product literature, instruction manual, and presentation box. Complete, highly considered, and unmistakably collector-focused, the 5370P-001 remains one of the strongest expressions of modern Patek Philippe chronograph watchmaking: classical in spirit, uncompromising in execution, and enduring in appeal.

Brand: Patek Philippe
Reference: 5370P-001
Year: 2015
Case Material: Platinum 950
Case Diameter: 41 mm
Dial: Genuine black enamel dial on a white-gold base, with applied white-gold Breguet numerals, white printed railway minute track, tachymeter scale, leaf-shaped white-gold hands with luminescent coating, rhodiumed steel chronograph and split-seconds hands, and white-gold counter hands
Movement: Hand-wound calibre CHR 29-535 PS
Functions: Hours, minutes, split-seconds chronograph, 30-minute counter, subsidiary seconds, and tachymeter scale
Strap: Not specified in the provided text
Delivered With: Patek Philippe Certificate of Origin, additional case back, product literature, instruction manual, and presentation box

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