You can ask a TD. I know VSF use to sell straps separately if asked. Maybe ORF will do the same?
Alternatively you source them from DHgate or my preference Etsy. Or go for Horus straps
Where do you buy a good quality rubber straps for Omega Planet Ocean? (Ideally in EU)
Who is ORF?
Found this one being sold by RWI TD Trusty Time:
https://trustytimewatch.io/index.php?main_page=product_info&cPath=35_102&products_id=11164
^This
Also I just purchased a rubber strap for my Omega Aqua Terra off eBay.
Hi
How did this strap work out for you? I need to do the same - any links you could share if you’re happy with it? Thanks