Unveiled at Baselworld 2017, the Patek Philippe Ref.5320G Perpetual Calendar has been inspired by many predecessor models that attracted global attention in the 1940s and 1950s.
In 1925, Patek Philippe launched model 97'975, the world's first wristwatch with a perpetual calendar. It was followed by further unique pieces. Eventually, the manufacture integrated this type of watch in its regular collection. The kickoff began in 1941 with the Ref. 1518, a perpetual calendar with a chronograph. A year later, Patek Philippe introduced the Ref. 1526 Perpetual Calendar without a chronograph. Both models were endowed with a face that still thrills collectors: a double aperture for the day and month displays at 12 o'clock and a subsidiary dial at 6 o'clock for the analog date and the moon phases.
The contemporary vintage style of the new Ref. 5320G Perpetual Calendar is underscored by the shiny chocolate brown alligator strap with large square scales. It is hand-stitched, lined, CITES-certified, and secured with a Calatrava cross fold-over clasp in 18K white gold.
Model: Ref. 5320G Perpetual Calendar
Caliber 324 S Q
Self-winding mechanical movement
Perpetual calendar with day, month, leap-year cycle and day/night indication in apertures
Diameter: 32 mm (basic movement: 27 mm; calendar module: 32 mm)
Height: 4.97 mm (basic movement: 3.32 mm; calendar module: 1.65 mm)
Number of parts: 367
Number of jewels: 29
Power reserve: Min. 35, max. 45 hours
Winding rotor: 21K gold rotor, unidirectionally winding
Frequency: 28,800 semi-oscillations per hour (4 Hz)
Balance spring: Spiromax® (in Silinvar®)
Balance spring stud: Adjustable
• Pushed home To wind the watch
• Pulled out: To set the time
• Center hours, minutes, and sweep seconds
• Analog date at 6 o'clock
• Day and month (inline apertures)
• Day/night indicator between 7 and 8 o'clock
• Leap year cycle between 4 and 5 o'clock
• Day of week between 10 and 11 o’clock
• Month between 12 and 1 o’clock
• Date between 11 and 12 o'clock
• Moon phase between 6 and 7 o’clock
In ebony and 18K white gold delivered with the watch
Patek Philippe Seal
18K white gold
Sapphire-crystal case back and interchangeable solid 18K white-gold back
Water resistant to 30 m (3 bar)
Case dimensions: Diameter: 40.00 mm
Length (across lugs): 47.98 mm
Width (9 to 3 o'clock incl. crown): 41.75 mm
Overall height (crystal to lugs): 11.44 mm
Height (crystal to display back): 11.13 mm
Width between lugs: 21 mm
Brass, cream-colored lacquer
Applied Arabic numerals in blackened gold with Superluminova coating
12 applied five-minute cabochons in blackened gold with Superluminova coating
Hour and minute hands: sharp-tipped baton hands in 18K gold, blackened, with Superluminova coating
Parfil seconds hand in Pfinodal, counterbalanced
Printed date scale
Hand-stitched alligator leather with large square scales, matt chocolate brown, fold-over clasp in 18K white gold
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