Patek Philippe Annual Calendar Chronograph Ref. 5905/1A

This is a Patek Philippe Annual Calendar Chronograph Ref. 5905/1A, produced in 2025. A highly sought-after modern complication, this model features a stainless steel case paired with a rich green sunburst dial, combining sportiness with classic Patek Philippe elegance. The 5905/1A integrates an annual calendar with a flyback chronograph, requiring adjustment only once per year. Powered by Patek Philippe’s in-house automatic movement, this watch represents the pinnacle of contemporary Swiss watchmaking. This example remains in excellent pre-owned condition and includes its box and papers.

Key Features:

• Model: Patek Philippe Annual Calendar Chronograph

• Reference: 5905/1A

• Case Size: 42 mm

• Case Material: Stainless steel

• Bezel: Smooth polished bezel

• Dial: Green sunburst dial with applied hour markers

• Movement: Patek Philippe automatic movement (Caliber CH 28-520 QA 24H)

• Bracelet/Strap: Stainless steel bracelet

• Crystal: Sapphire crystal

• Functions: Hours, Minutes, Seconds, Date, Day, Month, Flyback Chronograph

• Power Reserve: Approx. 45–55 hours

• Water Resistance: 30 meters

• Box: Yes

• Papers: Yes

• Condition: 9/10 – excellent pre-owned condition with minimal signs of wear

• Year: 2025

• Service Warranty: 1-year service warranty on all pre-owned timepieces post 1975

Watch can be polished on customer request.