This is the updated version of the 62MAS-inspired Prospex SPB line dive watches. With a 40.5mm wide steel cases that have Seiko "super hard coating" along with 200-meters water resistance, a double domed and anti-reflective sapphire crystal, and Seiko's LumiBrite lume. Timekeeping is managed by the Seiko 6R35 automatic, which ticks at 21,600 vph and offers hacking, hand-winding, and a power reserve of 70 hours.

This SPB149 has a blue dial with yellow/gold accents and is limited to 5,500 pieces. This is one of the very last produced: this is number 5406. 

Including an upgrade Miltat steel bracelet from Strapcode, the best aftermarket Seiko bracelets!