I bought this watch as modded and have only worn it sparingly. I believe that there might be an issue with the automatic rotor winding but I'm not 100% sure what's going on. When I handwind the watch it seems to run fine but when I just let the winding do its job, the power reserve doesn't...
Up for sale is a brand new, in box, Seiko Monster (4th gen) SRPD27J1.
Comes with original box, unworn original strap.
I have great references, so buy with confidence: https://www.watchuseek.com/search...chid=153222267
Please feel free to ask questions, I'm happy to answer them...