I am offering some hard to find NOS Tropic Sport BLACK and RED Big Hole 20mm straps, Swiss Made and direct from Switzerland… signed 'INOX' SS 16mm buckles… 115mm x 75mm… soft and supple and extremely comfortable to wear… they look great on vintage and new divers, chronographs and mil-watches…

some history about Tropic straps from the great scubawatch.org...
“TROPIC brand watch straps were the original waterproof strap back in the '60s & '70s, and were original equipment on many dive watches including the Rolex Submariner. If you specified your Submariner without the bracelet, this is the strap you got. Rolex service centers were also supplied with Tropic straps.

Tropics were produced in Switzerland during the '60s and '70s, and later manufactured in China using the original molds. The originals are signed "TROPIC" and marked "SWISS MADE", and are typically fitted with an "INOX" or "ACIER" signed buckle. The Chinese manufactured straps are nearly identical except for being unsigned and using a "China" or "Hong Kong" manufactured buckle.”

$80 each in BLACK
$60 each in RED
shipping included in USA… for outside of US, please add $5 to cover recently increased overseas shipping costs… PayPal OK…

please email w/ any ??
thanks for looking and thanks to OTD!
cheers,
Peter
greatsw at cox.net

watch not included ;-)