Patek Philippe Complications Annual Calendar Chronograph 5905P-001 – Platinum Case with Blue Dial

The Patek Philippe 5905P-001 is one of the most elegant executions of the maison’s mastery in combining two of its most celebrated complications: the annual calendar and the chronograph. This platinum timepiece carries on the lineage of its predecessor, the 5960, while presenting a more modern and streamlined design, perfectly suited for those who value both technical ingenuity and understated luxury.

The 5905P-001 features a 41mm platinum case that exudes sophistication and presence without feeling overbearing on the wrist. The highly polished platinum surfaces give the watch a noble weight, complemented by the discreet diamond set between the lugs at 6 o’clock, a subtle hallmark of Patek Philippe’s platinum creations.

Its sunburst blue dial is among the most striking in the Patek Philippe catalog, radiating a dynamic play of light depending on the angle and setting. Baton-style hour markers and elegant dauphine hands provide excellent legibility, while the large central chronograph hand emphasizes the sporty yet refined nature of the watch.

At first glance, the 5905P-001 captivates with its clean dial design. The day, date, and month windows are symmetrically arranged in a line beneath 12 o’clock, maintaining perfect balance across the dial.

The chronograph complication is highlighted by a single, oversized 60-minute monocounter located at 6 o’clock, replacing the traditional three-register layout. This not only enhances readability but also contributes to the dial’s harmonious aesthetics.

Annual Calendar: Automatically accounts for months with 30 and 31 days, requiring only one adjustment per year at the end of February.

Chronograph: Operated by two pushers on the case flank, offering precise timing up to 60 minutes.

Movement – Caliber CH 28-520 QA 24H

At the heart of the 5905P-001 lies the self-winding caliber CH 28-520 QA 24H, a movement that combines a flyback chronograph with Patek Philippe’s sophisticated annual calendar mechanism.

Base: CH 28-520 with annual calendar module

Chronograph: Vertical clutch with column wheel, allowing the central chronograph seconds hand to function as a running seconds if desired, without wear on the mechanism.

Power Reserve: 45–55 hours

Frequency: 28,800 vph (4 Hz)

This caliber epitomizes modern horology with its blend of reliability, technical refinement, and aesthetic perfection.

CASE SIZE:

41mm

CONDITION:

This Timepiece is in an Unworn Condition Complete with Box & Papers Accompanied with a full Two-Year Warranty from Date of Purchase and a Full Value Appraisal