A luxurious Patek Philippe stainless steel wristwatch with a dark textured dial, two small subdials, date display, two time zones and a metal link bracelet, shown against a transparent background.

Close-up of the back of a luxury wristwatch showing an intricate mechanical movement with gold and silver colored components, visible gears and detailed engravings in a stainless steel case.

Side view of a silver wristwatch case with a crown with engraved emblem and two tabs extending from the top and bottom for attaching the strap.

Side view of a silver metal wristwatch with a brushed finish, showing the case, link attachment and part of the bracelet against a black background.

A gold ornamental cross with fleur-de-lis-style ends on each arm, set against a light background.

Flyback Chronograph. Travel Time.

5990/1A-011

A rare example of a complicated Patek Philippe model in steel, this Nautilus combines three highly sought-after complications: a self-winding flyback chronograph, a second time-zone display and a date hand coupled with local time. The elegant blue dial is enlivened by a sunburst motif and a black-gradient rim.

Technical Characteristics

Dial

Sunburst blue-gray with black-gradient rim, horizontally embossed, white gold applied baton-style hour markers with white luminescent coating. Local time hand: white gold rounded baton-style with white luminescent coating. Home time hand: white gold skeletonized rounded baton-style, white varnished.

Case

Steel. Diameter (10–4 o'clock): 40.5 mm. Thickness: 12.53 mm. Water-resistant to 30m. Screw-down crown. Sapphire crystal case back.

Bracelet

Steel. Steel fold-over clasp.

Movement

CH 28-520 C FUS
Self-winding
Flyback chronograph
Central chronograph hand
60-minute counter
Two time zones: local and home time indication
Day/night indication for local and home time in apertures
Date coupled with local time by hand

Diameter: 31 mm. Thickness: 6.95 mm. Number of parts: 370. Number of jewels: 34. Power reserve: min. 45 hours – max. 55 hours. Winding rotor: 21K gold central rotor. Gyromax: Gyromax®. Frequency: 28,800 semi-oscillations/hour (4 Hz). Balance spring: Spiromax®. Distinctive sign: Patek Philippe Seal.

Instructions for use

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A luxury stainless steel wristwatch with a dark, detailed dial featuring multiple subdials and silver hour markers on a dark, striped background.

A luxurious silver wristwatch with a metal band and a black, textured dial with several subdials shown at an angle against a blurred dark background.

Close-up of a luxury watch movement with intricate gears, metal components, purple stones and gold accents, with detailed engravings and polished surfaces.

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5990/1A-011

Technical Characteristics

Dial

Case

Bracelet

Movement

Instructions for use