Stands for Very fine adjusted with the VFA, and specially tuned by Seiko's outweigh the international chronometer standards standard daily rate + is a vintage model, very few production boasts the highest precision in mechanical watch that 2 seconds can hope.
Seiko historically popular products was the world of the Seiko name known began to participate in the Neuchâtel Observatory competition as a means of making. "Watch more than Switzerland," that with enthusiasm along tried force companies and individuals. Daini seikosha fourth, Suwa seikosha third fourth year 1967 first year 1964 was daini seikosha 153 #, Suwa seikosha 144 # and defend the prestige of Switzerland fifth year 1968, great result for competition were canceled. Then at the Geneva Observatory competitions in the same year was dominate in mechanical watches. Utilizing its technology was commercially available 61 GSVFA, 45 GSVFA, Observatory chronometer. VFA marketed the daily rate +-2 seconds, month difference +-was the realization of ultimate precision of the mechanical clock accuracy of 60 seconds for 2 years manufacturers warranty at that time was unprecedented. Since 1972 has been stopped by the rise of the quartz production.
Observatory chronometer 45 GSVFA's yellow gold model was sold in 1968, 73, has yellow model 61 GSVFA's best left to the manufacturer for more information and has been confirmed only the presence. Individuals with this condition and bracelet including the collector's belongings in the 10 years past I also checked 4 pieces, but for the first time. Still a little blue seal of the lid back dance. It is very difficult history sold almost without a valuing watches. Price value of rarity and history, State over this time it introduces.