Crafted in white gold, the 5740/1G houses a perpetual calendar complication within a remarkably slim case profile. The dial displays day, date, month, leap year cycle, and moon phase, arranged symmetrically for clarity despite the complexity. Powered by an ultra thin automatic movement, the watch maintains elegance while delivering long term calendar accuracy without manual adjustment. The integrated bracelet reflects the same finishing precision, with alternating polished and satin surfaces enhancing depth.

This reference represents a rare balance between complication and restraint. It is designed for collectors who appreciate discreet mastery, where technical achievement is expressed through proportion, refinement, and quiet precision rather than excess.

Patek Philippe Nautilus 5726/1A-014

Reference: 5726/1A-014
Collection: Nautilus
Complications: Annual Calendar + Moon Phases + 24-hour indication
Case material: Stainless steel
Case diameter: 40.5 mm
Case thickness: 11.3 mm
Water resistance: 30 m
Crystal: Sapphire crystal
Case back: Sapphire crystal
Crown: Screw-down
Bracelet: Integrated stainless-steel Nautilus bracelet
Clasp: Patented stainless-steel fold-over clasp with lockable adjustment system.

Dial

Color: Sunburst blue-gray
Outer treatment: Black gradient
Surface: Horizontally embossed
Hour markers: Applied white-gold baton-style markers with white luminescent coating
Hands: Rounded white-gold baton-style hands with luminescent coating.

Patek Philippe describes the blue dial as inspired by the original 1976 Nautilus, with the horizontal embossed pattern and black-gradient perimeter giving the steel case a more contemporary sporty-elegant appearance.

Movement

Calibre: 26-330 S QA LU 24H
Type: Self-winding mechanical
Functions: Annual Calendar, day/date/month apertures, moon phases, 24-hour indication and sweep seconds
Diameter: 33.3 mm
Thickness: 5.8 mm
Number of components: 339
Jewels: 34
Power reserve: 35–45 hours
Winding rotor: 21K gold central rotor
Balance: Gyromax®
Frequency: 28,800 semi-oscillations/hour, or 4 Hz
Balance spring: Spiromax®
Certification: Patek Philippe Seal.

The Annual Calendar mechanism was invented and patented by Patek Philippe in 1996 and requires only one calendar correction per year, unlike a perpetual calendar.

Alternative-reference context

The most important directly related steel reference is:

5726A-001 — stainless-steel case with the same 26-330 S QA LU 24H movement and the same Annual Calendar, Moon Phases and 24-hour functions, but configured on a black hand-stitched alligator strap rather than the integrated steel bracelet. Its dial is charcoal gray with a black-gradient rim, rather than the blue-gray dial of the 5726/1A-014.

Patek Philippe explicitly lists the 5726A-001 as another model alongside the 5726/1A-014, confirming that these are separate references rather than merely strap options.