3940J | Yellow Gold

The 3940J* is a complicated perpetual calendar watch that was created during the Quartz Crisis. It has endured through the years to become a highly coveted collector’s piece, beloved for its balanced layout, svelte profile, and classic look.

An elegant piece that has found itself in high demand from collectors in recent years, the reference 3940 is perhaps the most iconic perpetual calendar of the modern era. The design focuses on balance, with its three registers showing various functions neatly balanced out. The sub-dial at three o'clock shows the leap-year counter and the months (in English), in a slightly recessed sub-register, giving depth to the otherwise lightly brushed, silver dial. In a similar fashion, the months and day/night indicators are placed at nine o'clock. The stunning gold moon-phase is found at six o'clock, with the days of the month surrounding.

The dauphine hands add a touch of sharpness to what only can be described as a beautifully executed timepiece. Evidence suggests that the 3940 dials were produced by Stern Frères, who provided many to Patek Philippe during this period. Many of the characteristics associated with a second series example, including the early serif font on the sub-dials and the "σ SWISS σ" printed below the outer minute track, can be found on this model.

Representing the best of Swiss design, the movement itself is no less a technical feat. This example has a solid case back, which conceals the fantastic hand-finishing, including Côtes de Genève with its quality guaranteed by the Genevan Seal. The ultra-thin self-winding movement, powered by an off-centre 22k gold micro-rotor, has been in use by Patek Philippe since the 1970s, and has been incorporated into a number of their modern perpetual lines.

Created at the turn of the century, this watch is an excellent example of the neo-vintage movement, marking an exciting period of rebirth for the watch industry. At 36mm, the watch is a size that is reminiscent of vintage Patek Philippe references, further adding to its charm.

Closer look

This Patek Philippe 3940J is in good condition, superficial marks can be found throughout the case and lugs. Light oxidation is visible around the bezel and at the top of the lugs. The hallmarks and engravings on the case back are crisp and well defined.

The watch comes with a two-year warranty from A Collected Man, alongside a lifetime guarantee of authenticity.