Patek Philippe unveils a platinum version of its best selling Annual Calendar Chronograph timepieces. With this new Ref. 5905P Annual Calendar Chronograph, Patek Philippe proves yet again that refined combinations of trailblazing design and successful horological complications can result in totally new and distinctive timepieces. The metamorphosis begins with the dial that reflects the design of the Ref. 5205 Annual Calendar launched in 2010 but with new colours and further details is nonetheless original and unmistakable. The outermost scale for the chronograph hand is adjoined by a crisply graduated minute scale. It is followed by a broad ring that accommodates the applied white-gold hour markers and – between 10 and 2 o'clock – the three aperture displays of the Annual Calendar.
Model: Annual Calendar Chronograph Ref. 5905P
Caliber CH 28-520 QA 24H
Self-winding mechanical movement, chronograph with column wheel and vertical clutch, Annual Calendar, day/night indicator
Diameter:33 mm (basic movement 30 mm, calendar module 33 mm)
Height:7.68 mm (movement 5.20 mm, calendar module 2.48 mm)
Number of parts: 402
Number of jewels:37
Power reserve:Min. 45, max. 55 hours
Winding rotor:Central rotor in 21K gold, unidirectional winding
Frequency:28,800 semi-oscillations/hour (4 Hz)
Balance spring stud:Adjustable
Two crown positions:
- Pushed in: To wind the watch
- Pulled out: To set the time
Center hour and minute hands
Sweep chronograph/seconds hand
60-minute chronograph counters at 6 o'clock
- Day of week between 10 and 11 o'clock
- Date at 12 o'clock in 18K white-gold frame
- Month between 1 and 2 o'clock
- Day/night indication at 6 o'clock
- Chronograph start and stop at 2 o'clock
- Chronograph reset and flyback function at 4 o'clock
- Day at 9 o'clock
- Date between 9 and 10 o'clock
- Month at 10 o'clock
Patek Philippe Seal
Platinum 950, sapphire-crystal glass and case back
Top Wesselton diamond between the lugs at 6 o’clock
Water-resistant to 30 m
Dimensions:Diameter: 42 mm
Length (lug to lug): 50.46 mm
Width (3 to 9 o'clock incl. crown): 44.45 mm
Thickness (crystal to display back): 14.03 mm
Width between lugs: 22 mm
Brass, blue or black
Hours and minutes: Dauphine hands with 3 facets, 18K white gold with
Chronograph/seconds hand sandblasted rhodiumed steel, counterbalanced
60-minute counter hand brass, white, counterbalanced
Applied baton markers in 18K white gold
White printed scales
Alligator with large square scales, hand-stitched, matt navy blue with the blue dial and matt black with the black dial, platinum 950 prong buckle
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