{"product_id":"omega-vintage-calibre33-3-ref-2077","title":"Omega Chronograph Pre-Speedmaster CK2077 with Caliber 33.3 from 1944","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eOmega Calibre 33.3 CHRO\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is one of the most historically important chronograph movements ever produced by Omega and is widely regarded as the direct ancestor of the legendary \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCalibre 321\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e that would later power the first Speedmasters. Introduced in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1933\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and developed from a Lemania chronograph architecture following Omega's acquisition of Lemania through SSIH, the Calibre 33.3 marked the beginning of Omega's in-house chronograph tradition and established the technical foundation for some of the most celebrated chronographs of the twentieth century.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eIts designation derives simply from its diameter—\u003cstrong\u003e33.3mm\u003c\/strong\u003e—which made it one of the largest wristwatch chronograph movements of its era. \u003cmeta charset=\"utf-8\"\u003eThe generous dimensions allowed for an exceptionally balanced layout with oversized bridges, a large balance wheel, and robust chronograph components, resulting in a movement renowned for both its reliability and ease of servicing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe movement is a manually wound, column-wheel chronograph featuring a horizontal clutch. Beautifully finished with Geneva stripes, polished steel components, and carefully beveled bridges, the Calibre 33.3 reflects the level of craftsmanship that defined Swiss chronograph manufacturing before the Second World War. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eThe first watch to house the movement was the Omega CK 2048, introduced in \u003cstrong\u003e1937\u003c\/strong\u003e, followed by a small number of highly collectible references including the CK 2077, CK 987, CK 988, and CK 2092. Production continued for nearly two decades before the movement gradually evolved into the Calibre 321 during the late 1940s and 1950s.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe \u003c\/span\u003eOmega CK 2077\u003cspan\u003e is widely regarded as one of the finest\u003cstrong\u003e pre-Speedmaster\u003c\/strong\u003e chronographs ever produced. Introduced in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1937\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, it was Omega's \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efirst water-resistant chronograph\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, combining the groundbreaking Calibre 33.3 with a large screw-back case that was decades ahead of its time. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eMeasuring approximately \u003cstrong\u003e38mm in diameter\u003c\/strong\u003e, the CK 2077 was considered exceptionally large during the late 1930s and 1940s, when most wristwatches measured between 30 and 34mm. Its broad bezel, stepped case profile, oversized pushers, and generous dial opening gave it a purposeful appearance that feels surprisingly modern even by today's standards. The screw-down caseback provided improved protection against moisture and dust, making \u003cstrong\u003ethe CK 2077 Omega's first truly robust chronograph wristwatch\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eBrand: Omega\u003cbr\u003eModel:  Pre-Speedmaster\u003cbr\u003eYear of manufacture: 1944\u003cbr\u003eSerial number: 10.389.5xx\u003cbr\u003eMaterial: Stainless Steel\u003cbr\u003eDimensions: 38mm\u003cbr\u003eGlass material: plexiglass\u003cbr\u003eReference number:  CK2077 \u003cbr\u003eMovement type: Caliber 33.3 Manual winding\u003cbr\u003eBracelet: molequin leather strap\u003cbr\u003eMechanical performance warranty: 6 months\u003cbr\u003eBox and documentation:  N\/A\u003cbr\u003e\u003cbr\u003eObservations: The watch works correctly, movement is currently being serviced 15\/07\/26\u003c\/span\u003e\u003c\/p\u003e","brand":"rvmusa","offers":[{"title":"Default Title","offer_id":54225107386678,"sku":null,"price":18700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/8628\/1014\/files\/01_OMEGA_Vintage_Calibre33.3_2077_01-B.png?v=1784308062","url":"https:\/\/relojesvintagemexico.com\/products\/omega-vintage-calibre33-3-ref-2077","provider":"rvmusa","version":"1.0","type":"link"}