5905/1A
- Model
- Chronograph Annual Calendar
- Case material
- Stainless steel
- Case size
- 42mm
- Movement
- Automatic
- Calibre
- Cal. CH 28-520 QA 24H
- Dial colours
- Green
- Market value band
- $90k – $135k
The 5905 family, pairing a flyback chronograph with Patek's Annual Calendar complication, debuted at Baselworld 2015 as the successor to reference 5960. In 2021 Patek Philippe gave the line an integrated steel bracelet for the first time with reference 5905/1A, in a sunburst olive green dial, released the same year Patek retired the steel 5711 Nautilus.
Key dates.
- 5905 family introduced as successor to the 5960 chronograph/annual calendar
- 5905/1A becomes the first 5905 on an integrated steel bracelet
Before you ask.
What movement does the Patek Philippe 5905/1A use?
The Patek Philippe 5905/1A runs the Cal. CH 28-520 QA 24H, an automatic movement.
How do I check a Patek Philippe 5905/1A with Watch Safe?
Look up the watch's serial number in the Watch Safe registry to see whether a record exists or a theft flag is attached. A registry search identifies records for a specific serial; it does not authenticate the watch. Authentication is performed in person by an independent expert authenticator, and Watch Safe records and publishes the result.
Checking a specific Patek Philippe? Request access.