This is an all original and uncommon WW2 MILITARY OYSTER COMMANDER produced by the ROLEX watch company in 1942. The gold filled quite clean for its age. The reference 3478 case back is correct. The original OYSTER PATENT winding crown is still functioning. The caliber 59 movement (all original signed ROLEX under the dial) is keeping time very well after a recent clean and overhaul. The original dial is spectacular. Two-tone with Arabic numerals, red 24 hour scale, pencil hands and sub-seconds with curved print above. These 29.5mm. OYSTER watches are small in size and probably designed to avoid damage during battle. They were designed and sold to CANADIAN soldiers going overseas in WW2. This is a wonderful example-all original, excepting (of course) the perfect (new) vintage looking, stitched, leather band that compliments the watch quite nicely. These vintage military OYSTER watches are becoming very hard to find in original condition, especially as fine as this example. $1150.