Some time ago I scored a few vintage U.S. Divers catalogs, just to check out the DOXA content. Some of the images I'd already seen in Doc Pete's 40th anniversary DOXA book, but some were new, and really cool.
The first one is from 1970, and starts with the coolest cover of the four I have.
I wish I had a '69 catalog to compare with, but for '70, everything was offered. There were Pros, Sharkhunters, Searamblers, T-Graphs, and the smaller ladies sizes. The Blancpain is interesting, and priced at $95 compared to the 300Ts at $160.
The T-Graph Pro, dominated the 1970 catalog.
In 1971, everything stayed the same, but with less catalog emphasis on the T-Graph.
The 1972 is the best of the bunch, as these images (that were only thumbnails in the '71 catalog), are large enough now so you can see what the divers are wearing.
However, in 1972, the catalog emphasis on watches was much less. Only the 300T, with a $15 price increase, remained. The Blancpain, the T-Graph, and the ladies models were no longer shown.
For 1973 (the last catalog in the collection), DOXA had a presence, but the new focus was on the Favre Leuba. The Favre Leuba Deep Blue, and the Favre Leuba Bathy 160 (with internal depth gauge) were what they were most excited about that year. Still awesome though.
Hindsight is 20/20, but when my son was born in 2004, I put a 600T Pro back for him so that he could have a birth-year watch. Being born in 1972, I wish my dad had done the same for me.