Patek Philippe 3940G Perpetual Calendar: Review

by Barbara Wilson

The Patek Philippe 3940G Perpetual Calendar stands as a testament to the brand’s enduring legacy in the world of luxury watchmaking. Regarded as an icon of precision engineering and timeless design, the 3940G has garnered a distinguished reputation among watch connoisseurs and collectors worldwide. Its legacy is rooted in the rich history of Patek Philippe, a renowned Swiss watch manufacturer known for its commitment to unparalleled craftsmanship and innovation. The 3940G, first introduced in 1985, has continued to captivate enthusiasts with its seamless blend of sophisticated complications and exquisite aesthetics.


I. The History and Significance of the Patek Philippe 3940G

The origins of the Patek Philippe 3940G can be traced back to the brand’s historical commitment to perpetual calendar complications. The 3940G represents a pivotal moment in the brand’s history, showcasing its dedication to pushing the boundaries of horological innovation. Designed as a successor to the 3448 model, the 3940G embodies the culmination of Patek Philippe’s technical prowess and artistic finesse, signifying the brand’s unwavering pursuit of excellence in luxury watchmaking. Its significance lies not only in its technical achievements but also in its timeless design, which has solidified its position as an emblem of sophistication and refinement.


II. How the 3940G Perpetual Calendar Defines the Pinnacle of Haute Horlogerie

The Patek Philippe 3940G serves as an epitome of haute horlogerie, representing the pinnacle of technical complexity and exquisite craftsmanship. At its core, the 3940G seamlessly integrates intricate complications, including a perpetual calendar, moon phase indicator, and leap year cycle synchronization. These functions exemplify the brand’s mastery of horological artistry and precision engineering, setting the 3940G apart as a timeless masterpiece that transcends mere timekeeping to become a work of art. Its immaculate design, attention to detail, and flawless execution position the 3940G as a true collector’s item and a symbol of luxury and sophistication.


III. Features & Technical Specifications of Patek Philippe 3940G

1. Material: The 3940G is crafted from 18K white gold, ensuring both durability and a lustrous appearance that speaks to its luxury status.


2. Case Diameter: With a modest 36mm case diameter, the 3940G maintains a classic and elegant size, suitable for both formal and casual occasions.

3. Water Resistance: Though not primarily designed for extensive water activities, the 3940G boasts a water resistance of 30 meters, providing ample protection against daily splashes and accidental exposure to water.

4. Dial: The opaline white dial serves as a perfect canvas for the watch’s gold applied hour markers, offering a sophisticated and understated backdrop that accentuates the intricate complications of the timepiece.

5. Functions: The 3940G houses a myriad of functions, including hours, minutes, perpetual calendar with day, date, month, moon phases, and leap year indicator, catering to the needs of discerning watch enthusiasts who value both form and function.

6. Crystal: The sapphire crystal case back provides a glimpse into the intricate mechanics of the watch, showcasing the meticulous craftsmanship and artistry that define the 3940G’s allure.

IV. Examining the Movement: The Calibre 240Q Powers the 3940G’s Advanced Features

The heart of the Patek Philippe 3940G beats with the renowned Calibre 240Q, a self-winding movement celebrated for its exceptional thinness and precision. Crafted with meticulous attention to detail, the Calibre 240Q serves as the driving force behind the 3940G’s complex functionalities, including its perpetual calendar and moon phase indicators. With its impressive 48-hour power reserve and 27-jewel construction, the Calibre 240Q not only ensures reliable timekeeping but also reflects Patek Philippe’s commitment to technological innovation and uncompromising quality.

V. Patek Philippe 3940G Power Reserve Indicator

The inclusion of a power reserve indicator in the Patek Philippe 3940G enhances its functionality and user experience. This feature provides wearers with a valuable tool for monitoring the watch’s remaining power reserve, ensuring timely winding to maintain the timepiece’s accuracy and uninterrupted operation. The power reserve indicator serves as a practical and functional addition to the 3940G, reflecting Patek Philippe’s dedication to combining technical innovation with user convenience.

VI. Pairing the 3940G with the Right Strap and Dial Color for Maximum Effect

Patek Philippe offers a range of options for customizing the 3940G, allowing collectors to personalize their timepiece according to their preferences and style. The choice of strap material and dial color significantly impacts the watch’s overall aesthetic appeal, allowing for a harmonious blend or a striking contrast, depending on the wearer’s desired effect. Whether it’s the timeless elegance of an alligator leather strap or the contemporary allure of a blue sunburst dial, each combination elevates the 3940G’s visual impact and highlights its unique character, making it a true reflection of the wearer’s discerning taste and style.

VII. Patek Philippe 3940G Restoration & Refurbishment

While the Patek Philippe 3940G is built with enduring quality, the passage of time may necessitate occasional restoration or refurbishment to ensure its pristine condition and optimal performance. Patek Philippe’s comprehensive restoration services cater to the meticulous requirements of maintaining the watch’s original splendor and functionality. The restoration process involves a series of intricate procedures, including thorough cleaning, servicing, and, if necessary, the replacement of certain components. Each step is meticulously executed by the brand’s skilled artisans, ensuring that the 3940G retains its timeless appeal and operational excellence for generations to come.

VIII. Patek Philippe 3940G vs Rolex Daytona Comparison

While both the Patek Philippe 3940G and the Rolex Daytona are renowned symbols of luxury and craftsmanship, they cater to different sensibilities and preferences within the horological world. The 3940G’s emphasis on intricate complications and understated elegance distinguishes it from the sporty and functional appeal of the Rolex Daytona. Each timepiece represents the pinnacle of its respective category, appealing to connoisseurs with distinct tastes and style preferences. While the 3940G embodies sophistication and timeless refinement, the Daytona embodies sportiness and robust functionality, making each watch a compelling choice for collectors and enthusiasts seeking distinct experiences in haute horlogerie.


In the realm of haute horlogerie, the Patek Philippe 3940G Perpetual Calendar reigns supreme, embodying the brand’s heritage of excellence and precision. With its seamless integration of complex functionalities, elegant design, and meticulous craftsmanship, the 3940G stands as a timeless masterpiece, perpetuating Patek Philippe’s legacy as a paragon of luxury watchmaking. As a symbol of sophistication and technical ingenuity, the 3940G continues to capture the hearts of watch enthusiasts, solidifying its position as an enduring icon of the horological world.


1. Can the Patek Philippe 3940G withstand everyday wear?

The Patek Philippe 3940G, crafted with exceptional attention to detail and using high-quality materials, is designed to withstand regular wear. However, it is recommended to handle the watch with care and avoid exposing it to extreme conditions to ensure its longevity and optimal performance.

2. What makes the Patek Philippe 3940G a sought-after collector’s item?

The Patek Philippe 3940G’s combination of intricate complications, refined design, and impeccable craftsmanship contributes to its status as a sought-after collector’s item. Its limited production, enduring appeal, and revered status within the world of haute horlogerie further solidify its position as a treasured asset among watch enthusiasts and collectors.


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