Polished stainless steel case & bezel. Panerai's instantly recognizable Crown Protector in brushed stainless steel. Black dial with engraved luminous Arabic Numeral & Index hour markers. Polished steel hands with luminous fill. hours & minutes hands partially skeletonized. Small seconds sub-dial located at the 9 o'clock position, with luminous quarter hour indexes. GMT 2nd Time-Zone: Indicated by the luminous tipped arrow head hand. In 24 hour mode the GMT hand makes a single revolution once in 24 hours. 24 hour markings in Arabic numerals & index. Power reserve indicator disc viewable through the case back via a small window in the movement. Supplied with an extra black rubber strap & the necessary tools to change the straps. Panerai in house Caliber P.9003 , beats at 28,800 vph, composed out of 233 parts, contains 28 Jewels & has an impressive 3 days (72 hours) power reserve. Ref.  531.