{"product_id":"spring-bars-rolex-bubbleback-vintage","title":"Vintage Rolex Bubbleback spring bars — narrow lugs","description":"\u003cp\u003eSet of two spring bars for Rolex Bubbleback, in hardened Swiss Standard steel. Typical size: 16mm or 17mm between the lugs, depending on the reference. Pin diameter: 1.5mm. The Bubbleback is one of the first Rolex automatic watches, produced from 1933 to the early Fifties — references 3131, 3132, 5050, 6105 and similar.\u003c\/p\u003e\u003cp\u003eThe lugs of the Bubbleback are very narrow by modern standards. Few aftermarket straps are made in these sizes, and almost none come with the right spring bars. The 1.5mm does its job: it holds without forcing, and on a case that is nearly a hundred years old, that matters even more.\u003c\/p\u003e\u003cp\u003eWhen a client brings me a Bubbleback for a bespoke strap, these are the spring bars I use.\u003c\/p\u003e","brand":"Milano Straps","offers":[{"title":"Default","offer_id":45432058216482,"sku":"MS-SB-spring-bars-rolex-bu","price":14.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0797\/6461\/9298\/files\/rolex-bubbleback-spring-bars-steel-yellow-gold-high-grade.png?v=1779634053","url":"https:\/\/milanostraps.it\/en\/products\/spring-bars-rolex-bubbleback-vintage","provider":"Milano Straps","version":"1.0","type":"link"}