I thought this looks like a Brewster model but I could not find any descriptions mentioning the two tone case. Inside the case says Pat. Jan 11 1927 Bulova New York 14K Rolled Gold Plate. There is one small wear through on the back case corner. This was very hard to get a photo showing the yellow gold running vertically on either side of the crystal the full length of the lugs. The face has radium numbers and cathedral hands both look original and are in very good condition.