This is a Seiko KS, ref. 45-7000, powered by the 4500A movement. It's a high beat movement that runs at 36000 A/h (5Hz). The watch was produced between 1968 and 1974.
The watch was sold as "For Parts". The movement was out of the case in the listing photos, but the watch arrived in one piece.
The watch is disassembled and inspected. Damaged parts are replaced and the movement re-assembled and oiled. The Zaratsu polished case is fully restored and a new strap is fitted.
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