I've got my mum to order a Spigen strap from Amazon for me
Spigen Rugged Armor Pro Case with Strap Band Compatible with Google Pixel Watch 3 45mm - Matte Black
https://amzn.eu/d/hUkxi1C
I ordered a black black nylon strap off AliExpress for £3.17 delivered
https://www.aliexpress.com/item/1005...5-da9c2e0d9fcc