I only play in this narrow field of Speedmaster references so these are my criteria to be a considered a transitional I would be interested in.
145.022-68 Stamped case back
Stepped Dial with raised logo and long hour markers
DON Bezel
Hippocampus case back
Preferred fan tail long chronograph hand flat bottom acceptable
View attachment 114650
or
145.022-69 Stamped case back
Stepped dial with printed logo and short hour markers
DON Bezel preferred DNN acceptable
Hippocampus case back
Flat bottom chronograph hand
Click to expand...