Description: A highly desirable piece from Omega’s golden era, this Constellation Calendar (Calibre 504) combines elegance and precision. Revered by collectors for its chronometer-certified movement and early Constellation design, it remains a refined everyday watch and a timeless collector’s item. Case: Stainless steel base with 18K gold-capped bezel and lugs, housing Omega’s classic Observatory medallion in solid gold. Snap-in case back engraved with the famous Observatory logo. Inside case back engraved: Ref. 2943-2 SC / Acier Inoxydable / Fab. Suisse. Movement: Automatic, chronometer-certified full-rotor movement. Calibre 504, 24 jewels — the first Constellation movement with a date function. Fully serviced (September, 2025); runs accurately with strong amplitude. Dial & Hands: Original silver-toned domed dial with applied gold hour markers and “Calendar” script above the Constellation star. Gold dauphine hands and applied Omega logo. Light, age-appropriate patina adds vintage charm. Acrylic crystal in excellent condition. Signed Omega crown. Strap: High-quality black leather strap with original Omega buckle (gold-tone). Dimensions: Case diameter: approx. 36 mm (excl. crown), 38 mm (incl. crown) Lug-to-lug: approx. 44 mm Lug width: 18 mm Condition: Excellent vintage condition. The gold-capped case retains sharp edges and a well-preserved Observatory medallion. Original dial with light patina; movement fully serviced and running accurately. All functions (time & date) operate flawlessly. Why This Watch: • Collectors: Early Constellation Calendar with rare Calibre 504 — a true mid-century chronometer gem. • Daily Wear: Elegant size, reliable movement, and understated luxury. • Gift: A statement of timeless Swiss craftsmanship — refined, historic, and enduring. Terms and Conditions: • I will securely package this item for maximum protection however I will not accept responsibility for loss or damage in transit. • Any potential damage refunds will be subject to photographic proof. • All custom fees, duties, and taxes are in buyers responsibility. Don't worry about high custom taxes. Custom form value will be arranged.