Dear Narch2436, your watch definitively is a conversation piece, especially among Bulova afficionados! Let me try to answer your two questions about the history and which is rarest. To start with the latter, I have 80 examples in my database, 7 of 1925, 46 of 1926, 7 of 1927, 18 of 1928 and 2 of 1929, making this year the rarest. Then the history. I will limit myself to the facts. This model was introduced in 1925. It was first advertised as Conqueror in the Saturday Evening Post of 6 March 1926. An article in the Jewelers' Circular of 18 August 1926 after visiting the Bulova booth on the A.N.R.J.A. jewelry and watch fair, states that the watch was named Conqueror in honor of Commander Byrd after his successful flight over the North Pole on 9 May 1926. The watch is renamed to "Lone Eagle" in honor of Lindbergh, after his successful flight over the Atlantic to Paris on 20 May 1927. Byrd was a direct contender to Lindbergh. The watch is first advertised as Lone Eagle in the newspapers on 22 June 1927 and then in the Saturday Evening Post on 27 August 1927 (the previous ad of 30 July 1927 still calls it Conqueror!). This model continues until 1929, when on Saturday 29 June, its successor is introduced in the Saturday Evening Post and a day earlier in the newspapers, indicating it will go on sale this Saturday (the 29th). Enjoy your watch, it is a beautiful model with a great story to tell about the heroes of the mid '20s, the pioneering aviators!