This Super-O Boyer watch band with a curved solid end pieces perfectly fit SEI 63Mas - SEI Prospex SPB143, SPB145, SPB147, SPB149 with Dia. 40.5mm, the interpretations of SEI's First 62MAS models. Super-O Boyer watch band is a new breakthrough of our O Boyer Collection. Same as O Boyer, this Super-O Boyer composed of 3 flat and solid 316L stainless steel units plus highlighted 3D effect curved solid end pieces. This well-built replacement bracelet was assembled by screw-in adjustable details instead of flimsy pressure pins. Watch band is tapering to 18mm buckle width. (Compatible with original SEI 18mm buckle, if you want to install your original SEI clasp, please checks the size of your SEI clasp first.) This item includes one pair of FAT spring bar (Generic SEI Dia. 2.0mm spring bar) to ensure a more secure connection. Accompany with ratchet buckle clasp which is an ideal wetsuit watch band buckle. The ratchet theory extension mechanism is of great importance for both convenience and safety. Another awesome aftermarket stainless steel watch band for 63MAS Dia. 40.5, 62MAS-inspired Prospex SPB line 200m models. Today replaces your SEI watch into this unique aftermarket bracelet.
Watch Bands Lookbook demo watches by Strapcode: SEI SPB147 Prospex Diver 62MAS Reissue Black Dial