Patek Philippe Ref. 5905/1A-001 Self-Winding Flyback Chronograph with Annual Calendar
Launched as a platinum model in 2015, then in rose gold in 2019, Reference 5905 combines two practical and easy-to-use complications: a self-winding flyback chronograph and a patented Annual Calendar. The Manufacture is reinterpreting the style of this much sought-after model by unveiling a first version in steel – a rare metal in the Patek Philippe collections – with a three-link integrated bracelet. This bold and casual design renews the way a Patek Philippe complication watch is worn on a daily basis.
The extremely rhythmical dial features a new elegant and contemporary sunburst olive green color. It ensures excellent legibility for the additional functions, with a central chronograph hand, a large 60- minute subdial at 6 o'clock and three day/date/month apertures arranged in an arc for instant reading of the Annual Calendar indications. There is also a discreet day/night indicator at 6 o'clock that is useful for ensuring accurate date setting.
Visible through the transparent sapphire caseback, caliber CH 28-520 QA 24H remains faithful to the traditional column wheel for the transmission of chronograph commands. However, instead of a toothed-wheel horizontal clutch, it has a vertical disk-type clutch. This modern technical solution causes almost no wear and tear, and the central chronograph seconds hand can also be used as a permanent (running) seconds display. The patented Annual Calendar automatically takes account of 30- and 31-day months, requiring only one correction per year, on March 1st .
The polished steel case features a sophisticated construction with a concave bezel and recessed sides. The integrated steel bracelet is inspired by that of the Aquanaut Reference 5167/1A with its contrasting finishes (polished outer links and satin-finish inner links), while subtly distinguished from it by the underside of the bracelet and the edges which are polished, in line with the case. It is equipped with a patented Patek Philippe fold-over clasp secured by four independent catches.
The new Reference 5905/1A-001 is joining existing References 5905P-001 in platinum with a blue dial and 5905R-001 in rose gold with brown dial.
Technical specifications:
Patek Philippe Self-winding Flyback Chronograph with Annual Calendar
Reference: 5905/1A-001
Case
- Material: Steel
- Diameter: 42mm
- Height: 14.13mm
- Sapphire crystal case back
- Water-resistant to 30 meters
Dial and hands
- Olive green sunburst, gold applied hour markers
- White gold faceted dauphine hands with luminescent coating
Movement
- Caliber CH 28-520 QA 24H • Self-winding
- Diameter: 33mm
- Height: 7.68mm
- Number of parts: 402
- Winding rotor: 21K gold central rotor
- Frequency: 28,800 vph (4Hz)
- Power reserve: min. 45 hours - max. 55 hours
Functions/Indications
- Hour, minutes, seconds
- Flyback chronograph
- Central chronograph hand
- 60-minute counter
- Annual Calendar
- Day, date, month and day/night indication displayed in apertures
Strap and buckle
- Steel bracelet
- Fold-over clasp
MSRP: EUR 51'500
For more information, please visit patek.com
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