Annual Calendar 5396 (Moonphase)

The 5396G is Patek Philippe's annual calendar in white gold at 38.5mm, housing the 324 S QA LU 24H with moon phase and 24-hour indicator on a classic three-register dial. The annual calendar corrects automatically through every month except February, requiring just one manual adjustment per year. Collectors value it as the most wearable entry into Patek's perpetual-adjacent complication family, at a size that sits comfortably under a shirt cuff.

What it is

Patek introduced the 5396 in 2006 as a direct replacement for the 5035, retaining the 38.5mm case but moving to a new dial layout with the 24-hour subdial added to the existing moon phase display. The caliber 324 S QA LU 24H is a self-winding movement built on Patek's 324 base with the QA (quantieme annuel) and LU (lune) modules stacked above. The reference ships in white gold as the 5396G and in yellow gold as the 5396J; a rose gold 5396R followed.

Production has continued without major disruption since 2006, with dial variants including silver, silvery-opaline, and slate grey. No major case redesign has occurred; the 5396 remains dimensionally consistent across its production run.

Buying notes

Annual calendar modules are mechanically sensitive and can be damaged by incorrect manual correction outside the safe correction windows Patek specifies; always confirm a pre-owned example was advanced properly. Check that the moon phase display is accurately set and that the corrector pushers move cleanly with no mushiness, which can indicate worn module components. Inspect the white gold case for polishing: the lugs on the 5396 have brushed flanks that are frequently over-polished by dealers, leaving a uniformly shiny case that loses its original finishing.

The white gold bezel is unset and relatively thin, so look for dents or warping at the edges. Request Patek service records if possible, and be cautious of examples with no documentation where the movement has not been inspected in over a decade.

Market read

White gold 5396G examples trade in the $35,000 to $50,000 range depending on condition, dial variant, and whether original papers and box are present. Slate grey dials and early examples with full sets command the upper end. The 5396 sits at a notable discount to the perpetual calendar 5140 or 5327, which gives buyers genuine Patek annual calendar mechanics at a more accessible price point.

Unworn or exhibition-stickered pieces with complete sets rarely trade at retail; budget a 10 to 20 percent premium over well-worn examples in good service condition.

Service expectations

The caliber 324 S QA LU 24H carries a recommended service interval of roughly 5 to 8 years, though Patek now publishes a guideline of up to 10 years under normal use. A full service at a Patek-authorized center runs approximately $2,000 to $3,500 depending on whether module work is needed beyond the base movement service. The annual calendar module requires specialized adjustment; avoid independent watchmakers without documented Patek complication experience.