{"product_id":"rolex-18kyg-bubble-back-mint-unworn","title":"Rolex 18kyg BUBBLE BACK MINT (UNWORN)","description":"\u003ch3 class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eVintage Rolex Oyster Perpetual “Bubble Back” – 18K Yellow Gold\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Mint \/ Unworn\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Material:\u003c\/strong\u003e Solid 18K Yellow Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Size:\u003c\/strong\u003e Vintage Bubble Back proportions; exact size dependent on reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCrystal:\u003c\/strong\u003e Acrylic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial:\u003c\/strong\u003e Vintage Rolex Dial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBezel:\u003c\/strong\u003e 18K Yellow Gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement:\u003c\/strong\u003e Rolex Perpetual Automatic Mechanical Movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Hours, Minutes \u0026amp; Central Seconds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCase Back:\u003c\/strong\u003e Distinctive Domed “Bubble Back” Case Back\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e \u003cstrong\u003eMint – Unworn\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eRolex Oyster Perpetual Bubble Back\u003c\/strong\u003e represents one of the most historically significant chapters in Rolex watchmaking. Produced primarily from the 1930s through the 1950s, these watches combined Rolex’s waterproof Oyster case architecture with its pioneering self-winding Perpetual movement. The pronounced domed case back—responsible for the collector nickname “Bubble Back”—provided the additional space required by Rolex’s early automatic winding mechanism. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eCrafted in \u003cstrong\u003esolid 18K yellow gold\u003c\/strong\u003e, this example takes the already collectible Bubble Back and gives it the warmth and elegance characteristic of Rolex’s early precious-metal watches. Bubble Backs were produced in numerous configurations, including steel, two-tone, and solid gold, with surviving examples displaying an extraordinary variety of dials, bezels, hands, and case designs. Period 18K yellow-gold examples are well documented, including references such as the 3372 and 4130. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhat makes this particular piece especially compelling is its \u003cstrong\u003emint, unworn condition\u003c\/strong\u003e. Condition and originality are exceptionally important with Bubble Backs, as these watches are now approaching or exceeding 80 years of age and many surviving examples have experienced polishing, dial refinishing, replacement components, or extensive wear. An exceptionally preserved example offers collectors a rare opportunity to experience early Rolex craftsmanship much closer to its original state. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAlexanders Jewelers is located in Columbus, Ohio and has specialized in luxury watches and fine jewelry for over 20 years. We are members of Jewelers of America and the Better Business Bureau with an A+ rating. Every pre-owned luxury timepiece is carefully inspected for authenticity and condition. We offer financing options and accept all major credit cards and wire transfers.\u003c\/p\u003e","brand":"Alexander's Jewelers","offers":[{"title":"Default Title","offer_id":51577207980278,"sku":null,"price":11500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0249\/0889\/0208\/files\/UN-4043_6z12ns81orv_2026-08-20-14-52-20-Photoroom2.jpg?v=1788401592","url":"https:\/\/alexanderscolumbus.com\/products\/rolex-18kyg-bubble-back-mint-unworn","provider":"Alexander's Jewelers","version":"1.0","type":"link"}