Seiko watch is the most popular and easy access in the mod community, Seiko SKX007 and SRPD series are the leader of Seiko mod. Seiko Turtles follow closely as the easiest to mod for those joining the world of aftermarket watch modification.
Basic mod on Seiko is not that difficult, pretty straightforward, just gotta figure out where to source the parts, the dial probably being the hardest part to find. Only changing the watch band will make a hug difference on your stock watches. Take your time, watch a lot of videos on how to do it (lumeshot is pretty good on youtube)
If you’re in the market for a Seiko mod watch, here are the top 10 Seiko mod watches you might want to consider.
Top 10 Seiko Mod Watches:
Seiko SEIKO SRPD Series
Seiko Men’s SSC017 Prospex Solar Chronograph Dive Watch