These are really scarce old Swiss Tropic watch band parts to find. This is a 22510 Genuine Vintage Swiss Tropic dive watch band extension piece to lengthen any authentic Tropic strap to wear over a wetsuit. This piece will add up to 4 1/4 inches length (10.8cm) to any rubber divers watch band with a 16mm inner buckle opening. This piece just piggy-backs on the end of the strap as it is shown buckled together in a photo to a Swiss Tropic dive band (NO BAND INCLUDED). This piece is signed TROPIC bearing stock number 22510 and the 16mm inner opening size buckle is signed ACIER. We really have these in stock and this is our LAST ONE.

SEE SQUINKY'S COMPLETE TROPIC BAND SELECTION: We have nearly every size and color Authentic Original 1960s Swiss Tropic dive bands in stock, including the most desirable 20mm perforated waffle finish Tropic bands. Tropic Swiss was the original brand of dive strap on vintage luxury watches from the 1960s/70s. We supply more Tropic dive bands to vintage dive watch collectors on EBAY than anyone else. Quality and thickness of the rubber is great, and the band is very pliable. We also have the same band in white and grey in stock and many other black Tropics in 16mm, 18mm, 19mm, 20mm and 22mm. Buy with confidence from a seller with more than 17,000 positive feedbacks on EBAY since 1998 and a member of the NAWCC watch collector's association since 1997.