{"product_id":"cpo-zenith-chronomaster-open-033300360421m3300-geneva","title":"Chronomaster Open","description":"\u003cp data-start=\"151\" data-end=\"520\"\u003eThe Zenith Chronomaster Open, reference 03.3300.3604\/21.M3300, is a contemporary expression of the brand’s legendary high-frequency chronograph expertise. Instantly recognisable for its open dial revealing the beating heart of the movement, this certified pre-owned luxury watch is presented in new condition and supplied as a full set with its original box and papers.\u003c\/p\u003e\n\u003cp data-start=\"522\" data-end=\"970\"\u003eThe watch features a 39.5 mm stainless steel case with refined proportions and a balanced wrist presence. The black dial delivers a bold and modern aesthetic, enhanced by contrasting chronograph sub-dials and the signature open aperture at 9 o’clock, offering a direct view of the high-frequency escapement. Applied hour markers and luminous hands ensure optimal legibility, while the classic chronograph layout preserves harmony and functionality.\u003c\/p\u003e\n\u003cp data-start=\"972\" data-end=\"1381\"\u003ePowering the watch is the Zenith El Primero Calibre 3604 automatic chronograph movement. Operating at 36,000 vibrations per hour (5 Hz), this in-house high-beat calibre enables precise 1\/10th of a second chronograph measurement and offers a power reserve of approximately 60 hours. The movement can be admired through the sapphire crystal case back, showcasing Zenith’s modern finishing and technical mastery.\u003c\/p\u003e\n\u003cp data-start=\"1383\" data-end=\"1520\"\u003eThe stainless steel bracelet integrates seamlessly with the case, providing durability, comfort, and a cohesive sporty-elegant aesthetic.\u003c\/p\u003e\n\u003cp data-start=\"1522\" data-end=\"1842\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eOffered in new condition and accompanied by its original box and papers, this pre-owned luxury watch represents an exceptional opportunity to acquire a full set Zenith Chronomaster Open 03.3300.3604\/21.M3300, combining iconic open-heart design, high-frequency chronograph precision, and contemporary Swiss craftsmanship.\u003c\/p\u003e","brand":"Zenith","offers":[{"title":"Default Title","offer_id":56746159538520,"sku":"ZE539","price":6700.0,"currency_code":"CHF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0898\/4264\/7384\/files\/zenith-chronomaster-open-033300360421M3300-1.jpg?v=1771429242","url":"https:\/\/mintywatches.ch\/fr\/products\/cpo-zenith-chronomaster-open-033300360421m3300-geneva","provider":"Minty Watches","version":"1.0","type":"link"}