New Old Stock 20mm Tropic rubber strap type in a rare slotted style with a smooth basket-weave finish. We've sold 93 here to watch collectors already. They recognize this band as an original unsold vintage divers watch band from the 1960s/70s that is difficult to come by. This band is slightly tapered with ridged edges and a fine waffle pattern design in the surface of the rubber. Straight 20mm ends. We specialize in these 1960s/70s Tropic rubber band styles. Standard length unsigned strap measuring a 7 3/4 inches (20cm) placed end to end, not counting the stainless steel original buckle simply stamped "Stainless Steel" on back. Metric measurement of the two pieces are 115/78. Takes a 16mm buckle if you have a signed one for this strap. Strap is 3.5mm thick at the watch end. Great quality pliable rubber. Has 2mm spring bar holes. Single thick sliding strap keeper. We have several other similar Tropic 20mm band styles in our EBAY store Squinky so check out the full range. Buy with confidence from a seller who has earned 16,000 positive feedbacks EBAY since 1998 and been a member of the NAWCC watch collector's association since 1997.