At 25mm this is the smallest case in the Constellation range I've measured, built for a wrist that wants gold without bulk. What earns it real marks in my ledger is the movement: quartz, but Manufacture-grade, a tier above the module quartz most brands ship, since Omega bothers to finish and regulate something owners will rarely see running. The Moonshine gold dial reads warmer than plain yellow gold, and the solid gold case and bracelet put this firmly in 'special occasion' rather than daily-beater territory — the 30m water resistance agrees.