I've just sold a 19mm Tropic to a 6217 owner (and member of the SCWF), and very happy he appears to be with it.
But, the genuine Tropic straps carry a hefty price premium. The generic tropic straps that I've had are on a par in terms of quality with the genuine Tropics, but I wouldn't feel safe having a valuable watch on a 30 year old piece of plastic/rubber. So if you do decide to go with a Tropic style strap........ I'd rather trust the newer generic versions.
Or better still, fit a bracelet as swedefreak suggests.
But, the genuine Tropic straps carry a hefty price premium. The generic tropic straps that I've had are on a par in terms of quality with the genuine Tropics, but I wouldn't feel safe having a valuable watch on a 30 year old piece of plastic/rubber. So if you do decide to go with a Tropic style strap........ I'd rather trust the newer generic versions.
Or better still, fit a bracelet as swedefreak suggests.