The literature on the watch will simply list the diameter of the watch face and this is not enough information. You must also check the protruding dials and other issues like the wrist size of the person wearing the watch. Watches often do not fit inside watch cases of smaller construction. Many cases are being sold in the market place and only WatchCases.com is carrying cases for the large and Jumbo sized watches popular with serious collectors. (Case for Panerai Watches) Cheaper cases are made for cheaper small plastic watches. Jumbo watches measure from 45 mm to 65 mm (Or even larger! But we do not have cases for the 65 mm plus monsters sorry, not enough market demand!) For a nice collection of larger watches the Venlo Teakwood 12 Case is a very good choice or if he likes style and money is not object then the 12 BurlWood Case is the choice! Pillows are lare enough as is the head room in the case.