Patek Philippe launches a new perpetual calendar watch Ref. 5320G, remaking timeless classics. This watch not only correctly displays the date of each month, whether it is 28 days, 30 days, or 31 days, it also automatically displays the next day, the 29th day of February. The classic design is not afraid of the test of time, no matter the past, the present or the future!
The Ref 5320G watch has all the qualities that make collectors love, just like any perpetual calendar watch before it. It features a dial layout that has been a signature feature of Patek Philippe Perpetual Calendar since 1941, with the day and month at 12 o’clock side by side with dual windows, and the analog date dial and moon phase display at 6 o’clock. Today, a small day / night display window (between 7 and 8 o’clock) and a leap year cycle window (4 and 5 o’clock) are newly added to the milky dial. Gold three-dimensional Arabic numerals and pointed fluorescent hands (reminiscent of Patek Philippe’s chronograph Ref. 1563 introduced in the 1950s), a large central seconds hand, and perfectly divided seconds to ensure the dial is clear read. Under the dial lies a sophisticated mechanical movement.
Uphold tradition and keep innovating
A new change in Caliber324SQ movement is that the perpetual calendar module uses four windows, which show: week, month, leap year and day / night change. The moon phase display is extremely accurate, with one day of error every 122 years. To match the movement is a retro-style case with a contemporary design. The three-tier lugs are inspired by the famous Ref. 2405, introduced in the 1950s. The Ref 5320G watch uses a ‘box-shaped’ sapphire crystal that rises significantly above the bezel to highlight the slim shape of the side of the case. The back of the case uses a sapphire crystal to reveal the mechanical beauty of the movement: bridges with chamfered polished edges, Geneva stripes and gold-inlaid engraving, Gyromax® balance with Spiromax® hairspring made of Silinvar®, and ball bearing suspension Fixed gold automatic disc. Travel time accuracy is also an example: the daily travel time error does not exceed -3 to +2 seconds, which fully meets the requirements of the Patek Philippe mark.
This ‘retro and modern’ Ref. 5320G perpetual calendar watch is paired with a large square scale crocodile leather strap in a shiny chocolate brown with 18K white gold folding buckle.
Ref. 5320G Perpetual Calendar
Movement: Caliber 324 S Q self-winding mechanical movement. Perpetual calendar with week, month, leap year cycle and day / night display. Analog date display. Moon phase display.
Movement diameter: 32 mm (base movement: 27 mm; calendar module: 32 mm)
Movement thickness: 4.97 mm (base movement: 3.32 mm; calendar module: 1.65 mm)
Number of parts: 367
Number of jewels: 29
Power reserve: 35 hours minimum-45 hours maximum
Self-winding oscillating weight: 21K gold rotor, single-winding
Frequency: 28,800 pendulums per hour (4 Hz)
Balance wheel: Gyromax®
Balance spring: Spiromax ® (Silinvar®)
Balance spring balance bolt: adjustable
Two-position crown (1. Push back to the original position: can be wound. 2. Pull out: set the time.)
Hands: center hour, minute and large seconds
Date hand at 6 o’clock
Date and month (dual windows side by side)
Day / night display between 7 and 8 o’clock
Leap year cycle display between 4 and 5 o’clock
Calibration and cancellation:
Weekly adjustment between 10 and 11 o’clock
Month adjustment, between 12:00 and 1:00
Date adjustment between 11:00 and 12:00
Moon phase adjustment, between 6:00 and 7:00, comes with adjustment pens made of ebony and 18K white gold
Patek Philippe Mark
Case: 18K white gold
Sapphire crystal case back and interchangeable 18K white gold case back
Water resistance to 30 meters (3 atmospheres)
Case size: Diameter: 40.00 mm
Length (diagonal of lugs): 47.98 mm
Width (9 to 3 o’clock including crown): 41.75 mm
Overall thickness (mirror to lug): 11.44 mm
Thickness (mirror to case back): 11.13 mm
Lug pitch: 21 mm
Dial: brass, cream white
Gold solid Arabic numerals, black with Superluminova® fluorescent coating.
Twelve convex gold three-dimensional five-minute graduations, black with Superluminova® fluorescent coating
18K Gold Stick Hour and Minute Hands, Black with Superluminova®
‘Parfil’ rhodium-plated seconds hand, Pfinodal alloy, counterweight
Strap: Large square scale crocodile leather strap, hand-stitched, matte chocolate brown, with 18K white gold fold