I think the shape of the case, its relatively thin case, & the small lug width (19 mm) all contribute to it. The lume is very legible in the dark, even after a long period in the dark. Accuracy is much better than what Seiko state officially (I think they’re being on the safe side).
As such, Seiko has decided to release three new shrouded cased solar dive watches, the Seiko Prospex with professional specifications, "Street Series" collection. They run on a solar powered Caliber with a V157 movement which offers approximately of 10 months time when fully charged.Lug width of Seiko SKX007, Seiko Alpinist, Seiko Turtle SRP777, SARB033, Sumo, MM300, Baby MM, Samurai, Solar, 62MAS reissue & Cocktail Time. For customers who are new to the watch world and wanting to know the lug width of their watches or find out...