Patek Philippe Ref. 7140 Ladies First Perpetual Calendar

The new Ref. 7140 Ladies First Perpetual Calendar is an ultra-thin self-winding mechanical wristwatch featuring a calendar mechanism that automatically knows the number of days in each month and also correctly displays the 29th of February in leap years. Its timelessly elegant design, the precious array of flawless Top Wesselton diamonds (bezel with 68 diamonds totaling approx. 0.68 ct., clasp with 27 diamonds totaling approx. 0.20 ct.) as well as the lasting value of complicated Patek Philippe watches make this charismatic gem for the feminine wrist a treasured possession that will retain its contemporary allure for generations to come.

With a diameter of 35.1 mm and a height of 8.8 mm, the round case has a classic look in form and proportions that will outlast all mainstream fashion fads. Thanks to these virtues and the highly intricate, self-winding mechanical movement composed of 275 parts, Patek Philippe’s Ref. 7140 Ladies First Perpetual Calendar is a coveted possession for modern women who cherish inner values as much as they appreciate outward grace.

The growing affinity of women with mechanical watches and complicated functions is among the particularly delightful trends in the domain of horology. Accordingly, the response to the Ladies First Chronograph in the autumn of 2009 was highly positive, as was the case two years later when two grand complications – an ultrathin split-seconds chronograph and an equally graceful minute repeater – were launched in very feminine versions. Now, Patek Philippe is presenting the Ref. 7140 Ladies First Perpetual Calendar, the debut of this complication in the manufacture’s current collection for ladies.

With its technical sophistication and fetching aesthetics, it will fascinate every woman with a penchant for the pinnacle of watchmaking artistry. This predilection couldn’t be accommodated in a better way than by a perpetual calendar, a grand complication that qualifies as an incarnation of eternity with its functionality, lasting value, and reliability across generations, timelessly elegant design, and enduring array of diamonds. The workshops’ design team and the complications ateliers spared no effort to endow this complicated timepiece with an irresistibly feminine personality.

The objective was accomplished with panache, as evidenced by a glance at the new Ref. 7140 Ladies First Perpetual Calendar. All of the elements of this elegant timepiece reflect feminine poise, from the classic round Calatrava case in 18K rose gold and the gracefully curved lugs to the shimmering creamy white dial, the interchangeable mink gray and royal purple alligator straps, the lovely bezel, and the clasp set with precious diamonds that deserve to be called a girl’s best friend.

The dimensions of the case are also ideal for the feminine wrist. With a diameter of 35.10 mm and a height of 8.8 mm, it is endearingly discreet and lissome. Despite its compact size, it presents its eight indications – hours, minutes, date, day of the week, month, leap-year cycle, 24-hour subdial, and moon phases – in a very clearly organized and easily legible configuration. This is due not least to the subtle contrast between the white opalescent dial and the hands, the applied Breguet numerals, the minute-marker pearls in 18K rose gold, and the discreetly elegant yet crisply readable calendar indications.

The 68 flawless Top Wesselton diamonds totaling approx. 0.68 ct. embrace the perpetual calendar dial, framing it like a precious treasure with sparkling intensity. But these readily visible assets not only underscore the beauty of this exceptional timepiece, they also bring its inner values to the fore. The watch comes with a solid-gold case back and an exchangeable sapphire-crystal display back that allows its owner to admire the magnificently designed and artistically decorated mechanical caliber.

The movement of the Ref. 7140 is the sine qua non of an ultra-thin and strikingly elegant perpetual calendar model. It is the legendary caliber 240 Q assembled in the manufacture’s ateliers for complicated watches. Composed of 275 individual parts, it is only 3.88 high, despite the fact that it is self-winding. This feat was made possible by recessing the off-center 22K gold minirotor in the plate, combined with an ingenious arrangement of the mechanisms for the perpetual calendar and the moon-phase display.

With a mechanical memory of 4 years or 1461 days, the perpetual calendar always indicates the correct date, automatically taking into consideration the months with 31, 30, or 28 days, and the 29th of February in leap years. If the watch is regularly worn or kept in a winder when off the wrist, it will take until 2100 before the calendar has to be manually advanced by one day: according to the Gregorian calendar, the year 2100 is a so-called secular year that omits the 29th of February.

This extraordinary timepiece designed for eternity is worn on a hand-stitched alligator strap with a prong buckle in 18K rose gold that is adorned with a further complement of 27 flawless Top Wesselton diamonds totaling about 0.20 ct.

Technical details
Patek Philippe Ref. 7140 Ladies First Perpetual Calendar
Complicated ladies’ wristwatch with perpetual calendar in 18K rose gold

Caliber 240 Q
Ultra-thin self-winding mechanical movement. Perpetual calendar with analog displays for the date, day of the week, month, and leap-year cycle. Moon phases.
Diameter: 27.50 mm
Height: 3.88 mm
Number of parts: 275
Number of jewels: 27
Power reserve: 48 hours
Winding rotor: Recessed 22K gold minirotor, unidirectional winding
Balance: Gyromax®
Frequency: 21,600 semi-oscillations per hour (3 Hz)
Balance spring: Spiromax®

Two-position crown
– Pushed in: To wind the watch
– Pulled out: To set the time
Displays: Center hour and minute hands
Subsidiary dials:
– Day of week and 24-hour dial at 9 o’clock
– Month and leap-year cycle at 3 o’clock
– Date and moon phases at 6 o’clock

Correctors: At 9 o’clock: Day of week correction
Between 11 and 12 o’clock: date correction
Between 12 and 1 o’clock: month correction
At 6 o’clock: moon-phase correction
Setting stylus in ebony and 18K rose gold delivered with the watch
Hallmark: Patek Philippe Seal

Round Calatrava case in 18K rose gold (4N), cambered sapphire crystal glass, bezel with 68 flawless Top Wesselton diamonds totaling approx. 0.68 ct. Snap back in 18K rose gold and interchangeable sapphire-crystal display back.
Water-resistant to 30 meters
Case dimensions: Diameter 35.10 mm
Height: 8.8 mm (overall)
Height: 8.7 mm (back to glass)
Width between lugs: 21 mm

White opalescent
Six applied Breguet numerals in 18K rose gold
Thin leaf-shaped hour and minute hands in 18K rose gold
Subsidiary dials:
– Day of week and 24-hour dial at 9 o’clock: leaf-shaped hand
– Month and leap-year cycle at 3 o’clock: leaf-shaped hand
– Date and moon phases at 6 o’clock: leaf-shaped hand

Bezel set with 68 flawless Top Wesselton diamonds (totaling approx. 0.68 ct.)
Clasp set with 27 flawless Top Wesselton diamonds (totaling approx. 0.20 ct.)

Alligator strap with square scales, hand-stitched, shiny mink gray, prong buckle in 18K rose gold, diamond-studded. Additional hand-stitched alligator strap with square scales in royal purple.

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