Omega Constellation Quartz - 25 mm Steel Case - Blue Glass Diamond Dial - 131.10.25.60.53.001 CelliniPrince month display via 12 apertures

month display via 12 apertures around the circumference of the dial

Rolex calibre 3155 self-winding movement with instantaneous date and day windows

black Oysterflex strap made from flexible metal blades overmoulded with high-performance elastomer

Rolex calibre 2236 self-winding movement with rapid setting instantaneous date

Omega Constellation Quartz - 25 mm Steel Case - Blue Glass Diamond Dial - 131.10.25.60.53.001 CelliniPrince month display via 12 apertures25 mm steel case, bezel with engraved Roman numerals, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, blue aventurine glass dial with diamond hour markers, Calibre Omega 4061 quartz movement, approximately 48 months of power reserve, steel bracelet. Water resistant to 30 metres (100 feet).