Introduced in 2014 as the first steel Nautilus to combine flyback chronograph and travel time complications, the reference 5990/1A-011 established itself as one of the most technically ambitious sports watches in Patek Philippe's contemporary catalog. This 40.5mm steel example showcases the distinctive blue-black gradient dial that transitions from deep midnight blue at the center to rich black at the periphery, creating the visual depth that has made this reference a standout among Nautilus variants. The Patek Philippe Nautilus 5990/1A-011 houses the manufacture Caliber CH 28-520 C FUS, a movement that required five years of development to integrate dual-timezone functionality with flyback chronograph capability within the constraints of the iconic Gérald Genta case design.

Key Features & Specifications

• Dual-Timezone Complication — Travel time function displays home and local time simultaneously through a sophisticated system of independently adjustable hour hands, with day/night indicators at 9 and 3 o'clock
• Flyback Chronograph — Instantaneous reset and restart capability allows timing of sequential events without stopping the chronograph, powered by the column-wheel controlled Caliber CH 28-520 C FUS
• Blue-Black Gradient Dial — Horizontally embossed surface treatment creates the signature Nautilus texture while the color transition from blue center to black periphery adds visual complexity unique to this reference
• Integrated Steel Bracelet — Brushed and polished links flow seamlessly into the 40.5mm octagonal case, secured by the patented Nautilus fold-over clasp with safety catch
• Sapphire Crystal Case Back — Transparent exhibition back reveals the decorated automatic movement with 21K gold central rotor and Patek Philippe Seal finishing standards
• Water Resistance Rating — 120-meter depth rating maintains the sporting credentials established by the original 1976 Nautilus design philosophy

About This Timepiece

• Bracelet Sizing — Complimentary bracelet sizing included with every purchase. Contact us with your wrist measurement and we'll have it ready before shipping.
• Authenticity Guarantee — Every watch is thoroughly inspected and authenticated by our team of certified horologists. 100% authentic, guaranteed.
• Warranty — New model watches include a 1-year mechanical warranty covering manufacturing defects. All watches include our confidence guarantee.
• Shipping — Free insured overnight FedEx shipping on all orders. Fully insured, signature required, discreet packaging.

Contact Us

Questions about this timepiece? Our specialists are available to help.
Phone/Text: (310) 363-0481
Email: chris@chronocandy.com

Chrono Candy is an independent luxury watch dealer and is not affiliated with Rolex S.A., Rolex USA, Patek Philippe, Audemars Piguet, Cartier, Omega, Tudor, or any brands listed.