Omega Jumbo “Blue Marble” Sub Second – Cal. 285 | Ref. 2503-2 A truly extraordinary and highly artistic vintage Omega distinguished by its mesmerizing “Blue Marble” dial. The vivid blend of deep blue tones and naturally aged textures creates a unique appearance reminiscent of lapis stone or abstract enamel work, making this piece unlike any other. Housed in an elegant oversized case and powered by the renowned Omega Calibre 285 manual-wind movement, this reference represents the golden era of Omega dress watches. The oversized Arabic numerals, warm gilt hands, and recessed sub-seconds register combine to give the watch a beautiful blend of vintage military and classic Calatrava-inspired aesthetics. A visually captivating collector’s piece with tremendous wrist presence. Important Note: High-resolution images may exaggerate minor imperfections not visible to the naked eye. Specifications Brand: Omega Model: Jumbo “Blue Marble” Sub Second Reference: 2503-2 Movement: Omega Cal. 285 Manual Wind Case Material: Stainless Steel Case Size: 36mm excluding crown (Jumbo) Dial: Proffesionally Repainted Blue “Marble” dial with Arabic numerals and sub-seconds register Crystal: Acrylic crystal Strap: Blue fabric Texture Leather strap Buckle: Omega Logo Buckle Functions: Hours, minutes, sub-seconds Style: Jumbo dress watch / Calatrava style Era: Circa 1950s ⸻ Condition Overall: Excellent vintage condition with exceptional collector appeal. Movement: Fully serviced and operating properly. Case: Elegant oversized stainless steel case showing light signs of age while retaining attractive proportions. Dial: Spectacular Proffesionally Repainted “Blue Marble” dial featuring beautiful natural textures and outstanding character. No two examples age exactly alike, making each piece unique. Hands: Gold-tone hands complement the rich blue dial perfectly. Strap: Blue strap enhances the watch’s distinctive appearance. ⸻ Tax Disclaimer VAT, customs duties, or import taxes may apply depending on the buyer’s country. Please check your local regulations before bidding. ⸻ Shipping Worldwide insured shipping with tracking. The watch will be carefully packaged and shipped via express courier.