Thank you for the advice!An 18 mm Tropic strap would fit the bill. They are available used, NOS and re-popped. A simple ebay search brings up quite a few.
If you would like a beads-of-rice bracelet, the best way is to buy a "humble" Enicar with one fitted. Usually much cheaper than buying the bracelet alone, especially in the 18 mm size.
Great! Could you show us the bracelet?Thanks to post from jbcollier I bought a Enicar branded bracelet from eBay seller “Watch In The City“ from Arni Switzerland. Looks and fits great.
Perfect!Picture of bracelet as requested.