Model: Reference 126300WSO. Stainless steel case and bracelet. Fixed smooth bezel with stainless steel insert. White dial featuring luminous silver-tone hands and index hour markers, Arabic numeral minute markers every five minutes at the outer rim. Analog display with date function at the 3 o'clock position. Powered by Rolex calibre 3235 automatic movement, Cal. 3035-based, 31 jewel, beats per hour: 28,800 (vph), approximately 70-hour power reserve. Scratch-resistant sapphire crystal. Screw-down crown. Solid case back. Round case shape measuring 41mm in diameter. Fold-over clasp with safety release. Water resistant to 100 meters / 330 feet. Functions include hour, minute, second and date.