Tropic-style 20mm straight black rubber straps 1960

Original 1960’s rubber strap, made in the tropic style. This is one is marked SUB and has 20mm wide straight ends in black, never worn with a stainless steel signed stainless buckle (16mm on the inside). Not sure where it was produced, like the tropic straps it is marked Mod. Dep. but it is a bit ticker and more flexible the tropic straps from Switzerland. When fastened in the longest position it measures 18,5 cm from lug to lug so just ad your watch size and you know the total length it will cover. Do check the attached video for some tweaking experience concerning rubber straps from YouTube! More straps and accessories at www.sometimeago.com.