Historical Context & Development The Seiko 62MAS, reference 6217-8001, debuted in 1965 as Seiko’s first professional-grade dive watch. It entered a market dominated by Swiss icons like the Rolex Submariner, Blancpain Fifty Fathoms, and Omega Seamaster 300

I don't have any of the reissues but they are a great representation of the original and a little more waterproof. Big and little crown below

Seiko 6105 Seiko 6309 Seiko 62-Mas from 1965

Note the difference in the pointer and the bracelet.

I love Seiko. If I could only collect one brand that would be my choice. I have owned some very special pieces from some very special brands but Seiko is still the one that floats my boat. I love vintage and modern Seiko. I love to collect the vintage and

Swapped out the turtle for an SKX. Really easy to wear seiko dive watches for weeks on end. 42.5mm on a 6.75in wrist. It wears small but wears a bit high at 13.25mm in height. All in all, a comfortable piece with either a jubilee or rubber strap. What I l

Both have their charms, and if anyone would like a more detailed write up, I found this site very helpful in my hunt for the 1964 WT.

... Of the Seiko World Time 6217-7000, made for the 1964 Tokyo Olympics. 55y old and still going strong!