This is a lesser known Seiko from the 1970s. It was designed for export to the US market. This specific piece dates to 1972. It has all the hallmarks of a 1970s designed watch with its large, chunky television case and top faceted glass. The quality of this piece sits somewhere between a King Seiko and a Grand Seiko with it's high grade chronometer movement. The cal 5626 was part of the executive line of the early 1970s. The movement was upgraded from the KS56 and adjusted to 5 positions and temperatures, in line with BO Chronometer standard of -3/+8 seconds per day. The movement benefits from hacking and manual winding, as well as having a beat rate of 28,800. I have a pretty close to NOS example, worn with love but never abused All parts are as per factory specs back in the day Serviced couple of days ago and timekeeping is at +-0 seconds per day Comes with the original H Link spec correct bracelet The dial is super clean with no signs of age or damage Priced to sell at 499$ with global tracked shipping NO TRADES PLEASE Shipped via UPS with a 4 day ETA to your doorstep