Ref. PAM903 The case, in stainless steel, measures 38mm x 11.2mm. It has an AR-coated sapphire crystal and it is water resistant to 30 meters. A 42mm version is also available. Movement is the Swiss automatic Panerai in-house caliber OP XXXIV with 22 jewels, 28,800 vph and a power reserve of 3 days. Functions are: hours, minutes, small seconds, and date. It has an ivory dial with luminous dot markers and large blue figures, matching luminous hands.