Omega Seamaster 'Serviced' 166.0205 (1975)

Presented for auction by Second Vintage This classic 1970s Omega Seamaster features a beautifully preserved vertically brushed champagne dial housed within a gold-plated cushion case, offering genuine character and reliable mechanical performance. Brand: Omega Model: Seamaster Reference Number: 166.0205 Serial Number: 39378464 Movement: Automatic, Caliber 1012, 23 Jewels Dial: Vertically brushed champagne with date Case Size: 35 mm (excluding the crown) Case Material: Gold-plated, stainless steel caseback Production Year: Circa 1975 Condition: Good vintage condition. Movement serviced on 1 September 2026. Timegrapher: +6+10s/dayMovement Serviced on 1/9/2026, performing remarkably well. Dial and Hands The exceptionally clean and attractive dial features a vertically brushed champagne finish in excellent condition. Applied black and gold baton indices are clean and intact, perfectly complementing the crisp printed text which shows no visible loss. The framed date window at the three o'clock position is clean and well-preserved. Time is indicated by black stick hands with gold-tone edges, which remain clean with no visible oxidation or corrosion. The sweeping seconds hand is straight and beautifully preserved, ensuring the dial remains highly legible. Case and Crystal The gold-plated cushion case features brushed upper surfaces and polished flanks, displaying honest vintage wear with preserved original geometry. Light to moderate surface scratches consistent with age and use are present, though the edges remain reasonably defined with no major dents or deep gouges visible. An integrated polished bezel ring surrounds the crystal, showing light surface scratches consistent with the rest of the watch. The case is fitted with a gold-tone knurled crown, which is clearly signed with the Omega logo and retains intact plating. The stainless steel caseback features a crisp hippocampus medallion. The flat acrylic crystal is clear, exhibiting some minor surface scratches and dust visible under harsh lighting, but no deep cracks or chips are observed. Movement Powering this Seamaster is the reliable automatic Omega Caliber 1012, a 23-jewel mechanical movement. The copper-colored Omega finishing is bright and clean, with no visible corrosion, oxidation, or significant tool marks. The rotor and bridges are well-preserved, and the engravings remain crisp and legible. The timegrapher recorded +6+10s/dayMovement Serviced on 1/9/2026. Exhibiting remarkable accuracy and consistency, performing brilliantly for a vintage timepiece. The movement was serviced on 1 September 2026. Strap The watch is paired with a period correct gold-tone brick-link style bracelet, accommodating a maximum wrist fit of up to 18 cm. This functional period-appropriate bracelet shows visible plating loss and corrosion on the inner surfaces of the links, while the outer surfaces display moderate wear and scratches. Condition Good vintage condition. The movement was serviced on 1 September 2026 and, supported by the recorded timegrapher result, is performing very strongly. The dial and hands are remarkably well-preserved and clean. The case and bezel display honest wear and surface scratches, maintaining good overall geometry without major dents. The crystal shows minor scratches and dust. The period correct bracelet exhibits noticeable wear, plating loss, and inner corrosion, yet remains entirely functional. Dimensions The case measures 35 mm in diameter, excluding the crown. Remarks This Seamaster offers a striking vertically brushed champagne dial and a highly reliable automatic caliber. The classic 1970s cushion case design and crisp caseback hippocampus medallion make it a highly appealing choice for any collector of vintage Omega. History The Omega Seamaster has long been a pillar of the brand's catalog, evolving through numerous design eras. The reference ST 166.0205 was part of Omega's international collection between 1976 and 1978, distinguished by its press-in style caseback and cushion geometry. Powered by the automatic mechanical Omega caliber 1012, this model represents the distinctive aesthetic of 1970s watchmaking, combining robust mechanical performance with bold case shapes and textured dials. / Second Vintage SKU: OME-ASX-0050