The Omega Constellation reference 1512.30 (often listed as 1512.30.00) is  a vintage, late 1990s and early 2000s interpretation of the iconic Constellation "Manhattan" design. Characterized by its signature bezel "claws" (griffes) and integrated bracelet, this unisex/men's quartz model offers a highly precise luxury timepiece in a classic, smaller format.

• Case Size & Dimensions: Officially designated at 33.5 mm in diameter (often noted as 33mm or 34mm across listings) with a very slim profile of about 8 mm thick. 

• Movement: Powered by the Omega Calibre 1532 quartz movement, featuring a rhodium-plated finish and an end-of-battery-life (EOL) indicator. 

• Dial: Features a white/silver textured dial with a subtle crosshatch or quasi-linen pattern, applied stick indices, faceted dauphine hands, and a date aperture at the 3 o'clock position. 

• Bezel: Fixed stainless steel bezel engraved with Roman numerals.

• Materials: Built entirely from 316L stainless steel for both the case and the integrated bar bracelet, fitted with a sliding or deployant clasp. 

• Crystal & Durability: Domed, scratch-resistant sapphire crystal with anti-reflective treatment. The watch has a water resistance rating of 5 bar (50 meters / 165 feet).