This 36.5mm circa 1965 Grand Seiko chronometer ref. 5722-9990 is a superb original example. The stainless steel case is unpolished with beveled edges, original winding crown, beveled polished hands, original dial, and gleaming fantastically accurate manual winding caliber 5722A chronometer-grade movement (just serviced). My watchmaker loved this movement. The movement offers a quick-set date feature. The gold Grand Seiko emblem on the screw-back is intact. These watches are grossly undervalued and becoming hard to find with the original crown. Grab it while you can. These fine Grand Seiko vintage watches appear large on the wrist due to the chunky and extended lugs.