Patek Philippe 7234A (New with box and papers) — USD 64,900 on eBay

The Patek Philippe Calatrava Pilot Travel Time Ref. 7234A-001 is a smaller-cased iteration of the brand's contemporary pilot-style dual time zone complication, positioned within the Calatrava collection. It offers a more compact alternative to its larger counterparts, appealing to collectors who prefer a more understated wrist presence while retaining the full functionality of the Travel Time mechanism. This reference features a 37.5mm diameter stainless steel case with a polished finish, complemented by a solid case back. It is powered by the self-winding Caliber 324 S C FUS, which provides a power reserve of approximately 35-45 hours. The movement incorporates a Gyromax balance and Spiromax balance spring, operating at 28,800 vibrations per hour. The dual time zone function is managed by two pushers on the left side of the case, which adjust the local time hour hand in one-hour increments. The 7234A-001 is notable for its stainless steel construction, a less common material for Patek Philippe complications, which contributes to its robust character. Its design, with a blue varnished dial and applied white gold numerals with luminescent coating, offers high legibility. The watch is recognized for its blend of a classic pilot watch aesthetic with Patek Philippe's horological refinement and practical travel complication.