Diligence in watching eBay netted me a "slightly used" vintage Tropic strap for my Watchco Seamaster 300. It arrived well packed today and after I washed it, there was almost no evidence that it had ever been worn. Replaced the buckle with a modern Omega 16mm buckle because it was nicer than the stamped buckle it came with, and I'm quite happy. By jumping on a $30 buy-it-now, I have the "proper" strap without having to spend $300. Tom