Pre-owned Oyster Perpetual Automatic Chronometer Blue Dial Mens Watch 15200 BLAO. Silver-tone stainless steel case with fixed silver-tone stainless steel bezel. Blue dial features silver-tone hands, Arabic numeral hour markers, minute markers, luminescent for night readability, and date display at the 3 o'clock position. Powered by Rolex Calibre 3135 Automatic movement with 31 Jewels, operating at 28800 vph, offering a 48-hour power reserve. Equipped with screw down crown, solid case back, and a 34 mm round case size. Oyster bracelet with fold over clasp and safety release. Chronometer certified, analog dial type, Swiss Made.