Overview
Master the art of global movement with the Patek Philippe Nautilus Reference 5990/1A-001. Widely regarded as one of the most practical and sophisticated complications in the Nautilus collection, this reference combines a flyback chronograph with the ingenious Travel Time dual-timezone system. Discontinued in early 2022 to make way for the blue-dial successor, the 5990/1A-001 with its iconic black gradated dial has rapidly become a high-priority acquisition for serious collectors. It is a masterpiece of stainless steel engineering, designed for the modern traveler who demands unrivaled functionality without sacrificing the legendary Nautilus aesthetic.

A Dial of Technical Precision
The black brass dial is a study in legibility and depth, featuring a striking bright-to-dark gradation and the signature horizontal Nautilus embossing. Unlike standard models, the 5990 features two central hour hands: a solid hand for local time and a skeletonized hand for home time. The dial is masterfully organized with a date subdial at 12 o’clock (synchronized with local time) and a 60-minute chronograph counter at 6 o’clock. Two small apertures labeled “Local” and “Home” provide day/night indications, ensuring the wearer is always perfectly oriented across time zones.

The Ultimate Utility in Stainless Steel
The 40.5mm stainless steel case is a marvel of architectural integration. While maintaining the iconic Nautilus silhouette, Patek Philippe has cleverly utilized the “ears” of the case: the right side houses the chronograph pushers, while the left side features discreet push-pieces to adjust the local hour hand forward or backward in one-hour increments. This seamless integration allows for a complex multi-complication watch to remain remarkably wearable and elegant. The integrated stainless steel bracelet features alternating polished and satin finishes, providing the perfect balance of sport and luxury.

Mechanical Grandeur: Calibre CH 28-520 C FUS
At the heart of this technical powerhouse is the Calibre CH 28-520 C FUS, a self-winding movement that represents the pinnacle of Patek Philippe’s mechanical ingenuity. This caliber combines a traditional column-wheel chronograph with a modern vertical disk clutch, allowing the chronograph hand to double as a continuously running seconds hand. Visible through the sapphire crystal case back, the movement features a 21k gold central rotor and the Patek Philippe Seal, guaranteeing a level of precision and finishing that is second to none.

Authenticity & Rarity at Cest Watches
At Cest Watches, we take pride in offering the most authentic and sought-after luxury watches in NYC. This discontinued Patek Philippe 5990/1A-001 is presented in exceptional condition as a full set, including the original Patek Philippe box, certificate of origin, and all accompanying manuals. Visit our luxury boutique at 10 West 46th St, New York to experience the unrivaled functionality and presence of this stainless steel Travel Time Chronograph in the heart of the Midtown Manhattan Diamond District.

Technical Specifications
Brand    Patek Philippe
Model    Nautilus Travel Time Chronograph
Reference    5990/1A-001 (Discontinued)
Condition    Pre-Owned / Excellent (Collector Grade)
Case Size    40.5mm
Thickness    12.53mm
Material    Stainless Steel
Dial    Black Gradated w/ Horizontal Embossing
Complications    Flyback Chronograph, Dual Time Zones, Day/Night Indicators, Date
Bracelet    Stainless Steel Nautilus Bracelet
Movement    Automatic Calibre CH 28-520 C FUS
Power Reserve    Approx. 55 Hours
Water Resistance    120m / 394ft
Inclusions    Full Set (Original Box, Papers, & Manuals)

Inquire Today
Own the definitive travel complication from the Nautilus collection. Contact Cest Watches today to inquire about the discontinued Patek Philippe 5990/1A-001 or visit our New York City boutique for a private viewing.