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BASELWORLD 2019: Patek Philippe Flyback Chronograph Annual Calendar Ref. 5905R-001

On the watch fair Baselworld 2019 Patek Phillipe presented a new model, which expands the Ref. 5905, launched in platinum in 2015. The new version (Ref. 5905R-001)is made of rose gold and has a brown sunburst dial hading gently to black at the periphery. Especially connoisseurs enjoy this self-winding chronograph due to the combination of its flyback function and patented annual calendar.

Patek Philippe Flyback Chronograph Annual Calendar Ref. 5905R-001

The Flyback Chronograph Annual Calendar 5905R-001 dial’s features three-face Dauphine hour and minute hands with a luminescent coating, rose-gold applied hour-markers, and luminous dots marking the five-minute points. The sandblasted sweep seconds-hand counts the seconds for the chronograph, while the large subsidiary dial at 6 o’clock totalizes the minutes from 1 to 60. The three apertures for the day, the date and the month are arranged along an arc with a day/night indicator. 

Patek Philippe Flyback Chronograph Annual Calendar Ref. 5905R-001 – back view

Within this timepiece beats the caliber CH 28-520 QA 24H self-winding movement, comprising 402 parts. The annual calendar, based on the Patek Philippe patent of 1996, automatically takes account of months of 30 and 31 days and requires correction only once a year, on March 1st. The chronograph remains true to the traditional column wheel for transmission of the start, stop and reset commands. Instead of the horizontal wheel clutch though it uses a vertical disk clutch. Since this solution is virtually friction-free, the center chronograph hand can also serve as a permanently running seconds hand without affecting the rate accuracy of the movement. That is why Patek Philippe decided not to include the usual small seconds dial in its self-winding chronograph models. 

Patek Philippe Flyback Chronograph Annual Calendar Ref. 5905R-001 – the movement

The new Ref. 5905R-001 takes its place alongside the existing models in platinum with blue or black dials.

BRAND:Patek Philippe
MODEL:Flyback Chronograph Annual Calendar
REFERENCE:Ref. 5905R-001
PRICE:59,170 Euro
DIAL:Brown sunburst, black gradated, gold applied hour markers, rose gold three-face Dauphine hands with luminescent coating
CASE BACK:Sapphire crystal
STRAP:Alligator leather with square scales, hand-stitched, shiny black, prong buckle
CALIBRE:Calibre CH 28-520 QA 24H
POWER RESERVE:Min. 45 hours, max. 55 hours
FUNCTIONS:Flyback chronograph, central chronograph hand, 60-minute counter, annual Calendar, day, date, month, day/night indication

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