1967 H. Vantage 17J

Got for $30. Runs like a quartz. After 1 month, time is off about 5 seconds (wow!). 17 Jewel ST 92 movement. SS case. Says water proof, but havent tried yet. Seller said it is a 1960, but impossible because vantage started around '63, and this matches an add from 1965/1967. Super clean crystal and case, lets me know what time it is, all the time!