This Super-O Boyer watch band with a curved solid end pieces perfectly fit SEI Black Sumo SPB125J1, Sumo SBDC001, SBDC003, SBDC005, SPB103J1 & Padi Sumo SBDC049 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 18 buckle width (compatible with original SEI 18 buckle, if you want to install your original SEI clasp, please check the size of your SEI clasp first).The lug of this watch band was tapered into 18mm buckle size, added value on flexibility of using your original 18mm SEI clasp back if you want. This item includes one pair of FAT spring bar (Generic SEI Dia. 2.5mm spring bar) to ensure a more secure connection. Here introduce the latest technology of metal coating - "Diamond-like carbon" DLC coating. DLC is very resistant to abrasive and adhesive wear making it suitable for use in wristwatch accessories that may experience extreme contact pressure in rolling or sliding contact. The extreme hardness, wear-resistance, and slickness of DLC coating make it an ideal coating to apply to stainless steel watch bands. Accompany with V-Clasp double lock buttoned diver's clasp. V-Clasp was made from solid 316L stainless steel with extra 6 micro holes for flexible fine tune length adjustment. Featured in V shape safety lock, streamlined form & chamfer edged design to giving a more massive look. Chamfer double locks diver's buckle is ideal for watch band with thickness approximate 4.0 - 5.0mm thickness. This unique aftermarket watch band tailor made for SEI Black Sumo SPB125J1, Sumo SBDC001, SBDC003 & SBDC005.

Item number: SS201820BLC032
Brand Name: Super-O Boyer
Lug width (mm): 20
Buckle size (mm): 18
Buckle Include: Yes
Buckle type / Buckle Finish: 316L Stainless Steel Solid V-Clasp Double Lock Buttoned Diver Clasp, Diamond-like Carbon (DLC Black)
Overall Length (mm): approx. 185
Thickness (mm): 3.4
Spring bar hole dia. (mm): 2.50
Design to fit : Compatible with Seiko Prospex Sumo SBDC001, SBDC003, SBDC005, SBDC017, SBDC019, SBDC027, SBDC031, SBDC033, SBDC049, SBDC057, SBDC069, SBDC081, SBDC083, SBDC095, SBDC097, SBDC099, SBDC113, SBDC114, SBDC121, SPB029, SPB031, Zimbe Limited Edition SPB055, SPB103, Black Sumo SPB125, SPB175, SPB177, SPB179, ROOTBEER Limited Edition SPB192, Zimbe Limited Edition SPB194, SPB195, SZSC004
Material: 316L Stainless Steel, all solid links include end links
Color / Finish: Diamond-like Carbon (DLC coating)
Max. length (mm): approx. 185
Corresponding Min. length (mm): approx. 110
Net Weight (gram): approx. 97
Lug end style: Curved End
Adjustment type: 8 Screw fixed links & 6 micro holes on clasp

Watch Bands Lookbook demo watches by Strapcode: SEI International Edition Prospex Sumo Automatic SPB125J1