So, I am interested in adding a solar something or other to the watch collection in the future, and I rather like several Seiko Solars (SNE107 and SSC003 for starters), but a jewelry store I usually trust without a second thought gave me pause. Their watch guru said to stick with Citizen for solar movements. He said Seiko's power cells usually bite the dust sooner and he's replaced/worked on far more of those than the Citizen ones. He USUALLY really knows his stuff, but I took issue with this one. My perception was that Seiko made really high quality solars, and that Citizen was good, but you might be paying a bit for the look or the name on the dial. I feel like if I knew who had the better internals, it could help me figure out what to buy when I do finally purchase. Right now, the only Citizens I have seen that I like enough to actually consider purchasing are maybe the BM-847500X and the BM-847526E (I love Bell + Ross, so this might help scratch that itch). I've been able to find many more Seiko Solars that I would love to buy, but I know I could find something I like in either camp.
So who do you think has the edge when it comes to Solar powered movements? I'm talking longevity and durability of just the movement/solar power system, I don't care about looks or case/dial fit and finish, etc.