Vintage Omega 18K Yellow Gold Dress Watch Case (Ref: Constellation)
Watch Case (Wristwatch component) · Yellow Gold (High-copper and silver alloy for warm classic tone)
Purity: 18K (75%, 750 fineness) Solid Gold

Type
Watch Case (Wristwatch component)
Purity
18K (75%, 750 fineness) Solid Gold
Gold Type
Yellow Gold (High-copper and silver alloy for warm classic tone)
Weight
35 to 55 grams (estimated gold content weight for a full solid case excluding movement)
Description
A sophisticated Swiss horological artifact, this 18K solid yellow gold case represents the pinnacle of luxury dress watches from the mid-20th century. Featuring the iconic Omega signed crown and a refined slim profile, the case exhibits the transition between soft vintage aesthetics and the sharp, geometric lines of late 60s design.
Key Features
Original signed Omega crown, vertical grain finishing, ultra-slim profile, and 18K solid gold construction
Color & Finish
Classic warm yellow with vertical brushed satin grain on the case side and high-polish on the crown and bezel lip
Hallmarks & Stamps
The crown features the traditional Omega 'Ω' raised logo. Purity stamps should be located on the interior back case cover or lug undersides
Dimensions Estimate
Approx. 34-36mm diameter, 8-10mm thickness; standard men's vintage dress size
Gemstones & Inlays
None visible; features a signed crown and likely acrylic or sapphire crystal
Clasp & Closure
Snap-on or screw-down case-back (side view shows a seam of a snap-back construction)
Chain & Links
Not applicable; integrated lug design intended for organic leather strap or gold link bracelet
Craftsmanship Details
Precision Swiss machining with hand-finished satin brushing and high-grade tolerances for water resistance seals
Authentication Indicators
Precision milling on crown threads, correct Omega logo relief, and color continuity between case components
Origin & Maker
Swiss Made; Omega SA (La Chaux-de-Fonds, Switzerland)
Era & Period
Mid-Century Modern / 1960s-1970s 'Golden Era' of Swiss Watchmaking
Age Estimate
Circa 1965-1972 based on the thin profile and crown style
Cultural Significance
A symbol of corporate and social success in the post-war era; a period where gold watches were the standard gift for lifetime milestones
Condition Notes
Very Good; light surface marring and 'flea bites' consistent with age; integrity of the crown teeth remains sharp
Value Estimate
$2,500 - $4,500 (inclusive of movement and brand premium; melt value approx. $1,800-$2,200)
Care & Maintenance
Clean with a soft microfiber cloth; avoid ultrasonic cleaners if the movement is installed; professional polishing only by horologists
Similar Items
Rolex Oyster Perpetual in gold, Patek Philippe Calatrava, Longines Conquest Heritage
Interesting Facts
Omega used '750' gold cases almost exclusively for their top-tier Constellation and De Ville lines during this period