ROLEX OYSTER ROYALITE STAINLESS STEEL WRISTWATCH CA. 1942: The case is stainless steel, 30mm x 35mm lug to lug. The dial is in good condition, showing appropriate age. The case number is 4229, serial number is 226619. Unique inside military hours track on the dial towards the inside of the minute track. the watch will run but needs some mechanical work on winding. Oyster style case with a screw down crown that needs attention as it will currently not screw down. 10 1/2 caliber movement. This is probably a military watch.