Omega Seamaster Cosmic "Crosshair Dial" (1968)

Presented for auction by Second Vintage This Omega Seamaster Cosmic is a striking example of late 1960s design, combining the robust engineering of the Seamaster line with a refined, modernist aesthetic. With its distinctive monocoque case construction and elegant crosshair dial, this timepiece represents a golden era of Omega watchmaking. The reference 136.016 houses the respected manual-wind Caliber 613, making it a collector-worthy piece that sits beautifully on the wrist with genuine vintage character. Brand: Omega Model: Seamaster Cosmic Reference Number: 136.016 Serial Number: 26710320 Movement: Omega Caliber 613 Manual Wind Dial: Silver vertical brushed crosshair dial Case Size: 34 mm (excluding the crown) Case Material: Gold Plated (20 Microns) Production Year: 1968 Condition: Good vintage condition. The watch presents an honest and attractive appearance with a pristine dial that contrasts well against the vintage wear of the gold-plated case. Timegrapher results show +40 to +45 seconds per day, indicating an decent operating movement. Dial and Hands The dial is the highlight of this timepiece, featuring a vertically brushed silver finish that catches the light beautifully. It showcases a classic crosshair or sector layout which adds depth and symmetry to the face. The applied gold-tone baton indices feature black inlays for high legibility, matching the stick hands perfectly. A framed date window sits at the three o'clock position. The dial surface is exceptionally clean and well-preserved, with the text and minute tracks remaining crisp and distinct. Case and Crystal The watch features a one-piece monocoque case designed for superior water resistance, clearly engraved with "Tool 105" on the back indicating the specific opening method required. The case is gold plated to 20 microns, showing visible signs of wear and softening on the edges and lugs consistent with its age. The caseback displays the iconic Seamaster Hippocampus emblem and the waterproof engraving, which remains sharp and legible. An Omega signed crown is fitted to the case. The acrylic crystal is in good condition, offering a clear view of the dial. Movement Powering the watch is the Omega Caliber 613, a high-grade manual wind movement with 17 jewels and a quickset date function. The copper-colored plating of the movement appears clean and free of oxidation in the photographs. The serial number 26710320 dates this specific movement to 1968. Timegrapher testing indicates a rate of approximately +40 to +45 seconds per day, suggesting the movement is running and functional. Strap The watch is fitted with a black leather strap featuring a crocodile grain pattern. It is paired with a gold-tone pin buckle that complements the case finish. The strap is in good condition with plenty of life left for daily wear. Condition This piece is in good vintage condition. While the case shows expected surface scratches and plate wear typical of a gold-plated watch from this era, the structural integrity remains excellent. The dial is in stunning condition, virtually free of blemishes, which elevates the overall visual appeal of the watch significantly. Dimensions The case measures 34 mm in diameter excluding the crown. Due to the cushion-shape design and monocoque construction, the watch wears slightly larger than its dimensions suggest, offering a classic vintage profile on the wrist. Remarks The Seamaster Cosmic line is celebrated for its unique unibody case design which eliminated the removable caseback to improve water and dust resistance. This particular example stands out due to the combination of the highly desirable Caliber 613 manual wind movement and the sophisticated crosshair dial layout. History Introduced in the late 1960s, the Cosmic was Omega's attempt to modernize the Seamaster aesthetic for a new generation. It moved away from the traditional round cases of the 1950s towards the more integrated, futuristic shapes that would define the 1970s. The reference 136.016 is a classic representation of this transitional period in Swiss watchmaking history. / Second Vintage SKU: OME1ISPMOQ000