{"product_id":"audemars-piguet-royal-oak-perpetual-calendar-ref-25659ba-diamond-set","title":"Audemars Piguet Royal Oak Perpetual Calendar Ref. 25659BA — Diamond-Set","description":"\u003cp\u003eThere are rare watches, and then there is this one. Presented at the Basel watch fair of 1988 as a prototype built to commission — in Audemars Piguet's own words — the reference 25659BA is the first Royal Oak Perpetual Calendar ever realised entirely set with diamonds. Not a catalogue variant, not an announced limited edition: an object born outside the boundaries of ordinary production, at a moment when the manufacture in Le Brassus was redefining what a luxury sports watch could be.\u003c\/p\u003e\u003cp\u003eThe idea behind it is almost paradoxical. Take calibre 2120\/2802 — one of the most sophisticated automatic complications of its time, with an openworked dial revealing the gears of the perpetual calendar — and dress it in round brilliants, from the case through the links of the bracelet. Two apparently opposed languages, mechanical manufacture and haute joaillerie, brought to converge without either giving ground. The result is a 39 mm watch in 18kt yellow gold whose presence far exceeds its dimensions.\u003c\/p\u003e\u003cp\u003eThe automatic calibre 2120\/2802 with 38 jewels is visible both on the dial side and through the sapphire caseback: the engraved and openworked plate, decorated with floral and scroll motifs, carries the AP signature, and the same decoration repeats on the bezel of the openworked dial. This example is the original first-production version, without leap-year indication — the most authentic configuration of the reference. It is offered with its authenticated Audemars Piguet warranty extract.\u003c\/p\u003e\u003cp\u003eTotal production of reference 25659BA spans seven years, from 1988 to 1995, for four examples: three in yellow gold and one in platinum, three of them in the same configuration as the present watch. A number that turns every public appearance of this reference into an unrepeatable event.\u003c\/p\u003e","brand":"Collecto Archive","offers":[{"title":"Default Title","offer_id":58063147532628,"sku":"4112","price":737000.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/9083\/7588\/files\/4112-1.png?v=1793445411","url":"https:\/\/collectoarchive.com\/products\/audemars-piguet-royal-oak-perpetual-calendar-ref-25659ba-diamond-set","provider":"Collecto Archive","version":"1.0","type":"link"}