I wear rubber straps mostly for actual diving. And for that I have found nothing better than the classic Isofrane.
The Borealis copy of the Isofrane is also quite good in quality, almost as good, for a fraction of the price.
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I tried the Bonetto rubber nato. Great quality rubber, but the design is based on springbars for all the hardware, and I had a few failures with those.
This Helson above is the actual watch I wear for diving these days. My wife wears a Seiko SRP turtle also on Isofrane.
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