Ratchet Buckle Clasp is an ideal Wetsuit watch band buckle. The ratchet theory extension mechanism is of great importance for both convenience and safety. Super Engineer II watch bracelet is design for Seiko Sumo models or other 20mm lug Seiko diver or sport watch case with the same curvature as the above models. Super Engineer II is composed by 5 chamfer edge well-made solid 316L stainless steel units. Screw-in adjustable details instead of flimsy pins to keep its solidity and stability. This item includes one pair of FAT spring bar (eg. generic Seiko Dia. 2.5mm spring bar) to ensure a more secure connection. This unique aftermarket watch bracelet tailor made for Seiko Sumo SBDC001, SBDC003, SBDC005, SBDC031 & SBDC033Item number: SS202017B031Brand Name: Super Engineer IILug width: 20mmBuckle size: 20mmBuckle Include: YesBuckle type / Finish: 20mm 316L Stainless Steel button control Diver Wetsuit Ratchet Buckle, Brushed Overall Length: 190mmThickness: 4.6mmSpring bar hole dia.: 2.5mm (included)Design to fit : Seiko Sumo SBDC001, SBDC003, SBDC005, SBDC031 & SBDC033Material: 316L Stainless Steel, all solid links include end linksColor / Finish: BrushedAll Available Max. length: 200mmCorresponding Min. length : 130mmNet Weight : 136gLug end style: Curved EndAdjustment type: Screw fixed Links + Ratchet adjust 10mm
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