Annual Calendar Moon Phases 39mm Yellow Gold, Yellow Gold Bracelet

The sophisticated Patek Philippe Ref. 5146/1J-001 showcases the maison's dedication to practical complications through its acclaimed annual calendar mechanism in a magnificent yellow gold execution. This 39mm reference with integrated bracelet represents Patek's modern interpretation of the complication they pioneered in 1996, requiring adjustment only once yearly at the transition from February to March. The warm ivory dial with applied Arabic numerals at the cardinal points creates perfect legibility across its multiple calendar displays while projecting understated opulence.

Inside beats the self-winding caliber 315 S IRM QA LU, featuring annual calendar mechanism displaying day, date, month, moon phase, and power reserve with legendary precision. The annual calendar system operates through an ingenious mechanical solution requiring just 154 components, compared to over 200 in traditional perpetual calendars. The exclusive 21K gold rotor ensures efficient winding, while the decoration includes Geneva striping, chamfered bridges, gold-filled engravings, and circular côtes de Genève—exemplifying Patek's commitment to traditional finishing techniques throughout their complications collection.

Master Luxury offers this preowned annual calendar in excellent condition, complete with original box and papers dated 13-FEB-2008. The integrated yellow gold bracelet with concealed Patek Philippe folding clasp creates perfect harmony with the case, establishing this reference as an exceptional expression of the annual calendar complication with precious metal presence. This distinguished timepiece bridges the gap between simple calendar watches and perpetual calendars, combining practical functionality with the warm aesthetic that only yellow gold can provide.