Gents IWC Big Pilot Perpetual Calendar in stainless steel, Ref# IW503605. On the original leather strap with a stainless steel deployant buckle. This watch will fit up to an 8.00- inch wrist. Smooth bezel with a sapphire crystal and a sapphire display caseback. The case diameter is 46 mm. Self-winding movement with sub-seconds, date, month, day, year, and a 7-day power reserve. Blue dial with painted Arabic numerals and applied luminescent hour markers, and luminescent-filled hands. With the outer box, box, travel case, booklets, cloth, and papers dated July 2022. Very Good condition.