This is a petite pocket watch, with the face marked Rockland. It very much resembles the Lady Maxim pictured here (http://www.mybulova.com/watches/1918-lady-maxim-7888#comment-form). with its case serial number 20k higher. It has the Bulova W. Co stamp on its movement. Based on those two facts I've guessed its date. I am awaiting shipment and will update info once my mail-order lady arrives.
Movement Serial No.
Case Serial No.