Patek Philippe Neptune Moon Phase Ref. 5085/1A

Technical characteristics

Type

Moon phase calendar wristwatch

Maker

Patek Philippe

Movement

cal. 240/164

Reference

5085/1A

Dial color

Black

Depth rating

30 meters

Bracelet type

Integrated stainless steel 'fish scales'

Case material

Stainless Steel

Place recorded

Switzerland

Maker / attribution

Patek Philippe

Discontinuation date

2005

Design

Visible features

• Satin black dial with moon phase display • Integrated 'fish scales' stainless steel bracelet • Exhibition sapphire case back revealing movement • Screw-down crown with cross emblem

Case and Bracelet

The stainless steel case measures 37mm in diameter and is designed with integrated crown guards and a screw-down crown. According to the auction description, the case retains its original dimensions and exhibits minimal signs of previous polishing. A domed sapphire crystal protects the dial, while the reverse side features a sapphire exhibition window to view the movement. The watch is rated for a depth of 30 meters. The watch is secured by an integrated stainless steel bracelet featuring a 'fish scales' link construction and a butterfly clasp. The bracelet is reported to be in good condition with nominal stretch and contains 18 links, sized to fit a wrist up to 7 1/4 inches. The screw-down crown is marked with the Patek Philippe cross emblem.

Movement and Dial

The timepiece is powered by the in-house caliber 240/164, which is visible through the exhibition case back. The functions include a moon phase indicator, a calendar display, and a power reserve gauge. The caliber 240/164 is a self-winding movement specific to this reference. The dial is a satin black color and features tritium-based luminous plots and hands. The vendor reports that the dial is free of age or damage, and the luminous material shows no signs of degradation under UV light. The luminous plots have developed a golden patina, while the hands appear slightly lighter in shade than the markers on the dial.

Provenance and Accessories

The Neptune model was originally introduced in 1996 and was subsequently discontinued in 2005. This specific item is a ref. 5085/1A, which the vendor identifies as the 'halo reference' for the series due to the moon phase complication. The set is provided with a full suite of original accessories. This includes the inner and outer presentation boxes, the Certificate of Origin, a leather document folder, and instruction manuals. Additionally, a setting pusher and a travel pouch are included in the package.

Identification

Reference

5085/1A

Serial number

31XXXXX / 41XXXXX

Source note

Facts transcribed from the linked source listing or collection record. Attribution and specifications are source-reported and have not been independently authenticated.

Catalogue references

No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.