Considering the same reference is currently £92,240 at Patek Philippe, and this ivory dial example is no longer produced, this is a real investment opportunity.

Purchased from the original owner, in outstanding crisp condition, and presented as a perfect full-set, retailed in October 2018.

The self-winding 5320G features Patek's signature (and one of the world's most legible) perpetual calendar layouts, with in-line double day/month aperture at 12 o'clock and a 31 day calendar display around the moon-phase aperture at 6 o'clock. The 18ct white gold 40mm stepped case, is paired with three-tier lugs and an exhibition caseback.

Requiring setting once every 100 years, this Perpetual Calendar automatically corrects itself, even recognising leap years. Visible through the sapphire crystal caseback is Patek’s self-winding calibre 324 S Q with 45 hr power reserve. Water resistant to 60m and fitted to a Patek Philippe alligator strap secured by its white gold folding clasp.