131.20.25.60.05.002 Omega The Omega Constellation Quartz 131.20.25.60.05.002 is a women's watch with a 25 mm stainless steel case and an 18K yellow gold fixed bezel that is engraved with Roman numerals. The crown is also made of 18K yellow gold. The watch has a white mother-of-pearl dial with 18K yellow gold hour markers and 18K yellow gold skeletonized hour hands. The watch performs two functions: hours and minutes, and is powered by a quartz movement (Calibre 4061) with a battery life of 48 months. The Omega logo is located below the 12 o'clock position. The case thickness is 8.1 mm, and the case back is solid. The front of the watch is protected by sapphire crystal. The watch also features a stainless steel and 18K yellow gold bracelet with a folding buckle. The water resistance of the watch is up to 30 meters. Overall, the Omega Constellation Quartz 131.20.25.60.05.002 is a beautiful women's watch that combines the durability of stainless steel with the luxury of 18K yellow gold. The white mother-of-pearl dial and the 18K yellow gold hour markers give the watch an elegant and feminine look, and the quartz movement ensures accurate timekeeping.