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Grand Seiko from 1965.When I acquired it, the rust on the edge of the caseback was quite stubborn. It was in a much worse state originally.I soaked rust remover into the gaps using a fine-tipped brush, then struggled immensely with the caseback opener, feeling like my brain might explode about four times. It was a formidable opponent after a long time. I'm glad I was able to open it safely without leaving any tool marks.

1968 King Seiko Original silver dial You can feel its history.To preserve this history, we leave the stains on the dial and hands as they are. We install them without cleaning them.We try to protect the tips of our tools with vinyl and work carefully. It's quite nerve-wracking... Conversely, if an old watch has a dial that's too clean, you might wonder if it's been redialed? And sometimes you become cautious about acquiring it. Today, too, I'm working at a leisurely pace. We specialize in SEIKO watches, accepting overhauls of automatic and hand-wound movements from the 60s onwards. Prices require...

My name is Oyama, and I am the representative of Oyama Shoten.We sell pre-owned vintage wristwatches. We primarily deal in SEIKO watches from the 1960s to 1980s.The products are mainly purchased from antique auctions held throughout Japan,and then repaired, maintained, and checked for operation before being sold. We act as a bridge, connecting "still usable items to their next owner." If you have any questions or requests, please feel free to contact us.