SJX Watches
Seiko Marks 60 Years of Diving with Prospex Editions (and a Micro-Adjust Clasp)
To celebrate 60 years of dive watches, Seiko is diving into the deep end with three additions to the Prospex range: the 60th Anniversary Marinemaster Professional (SLA081), 1968 Heritage Diver GMT (SPB509), and 1965 Heritage Diver (SPB511). Whether you’re a die-hard Seiko collector or simply a looking for an affordable, high quality diver, all three are distinct enough from their stablemates to be worth a look. But as exciting as the watches are, they’re arguably overshadowed by something simple yet significant, a feature Seiko enthusiasts have been requesting for a long time. The SPB509 and SPB511 are both equipped with a steel bracelet incorporating a micro-adjustment clasp that can be resized on the go by up to 15 mm, as opposed to the less practical diving extension found in preceding models. The 1968 Heritage Diver GMT SPB509 (left), and 1965 Heritage Diver SPB511 Initial thoughts In Western culture, significant anniversaries like the 25th, 50th, and 100th tend to be celebrated with great fanfare. In contrast, Japanese culture (and also widely East Asian culture) emphasises the 60th birthday – kanreki in Japanese – which also coincides with the completion of the traditional 12-year zodiac cycle. In this context, it’s worth looking closely at how Seiko is choosing to celebrate this milestone. The 1965 and 1968 Heritage models are powered by the well-known cal. 6R-series movements, which offer a 72-hour power reserve. While the pair are essentially variants o...
