I've done the same, I bought 5 of them, different colours, stripes etc, I don't see the point in paying any more than £5 for one.
I ordered a couple of £3.99 NATOs from eBay. A Royal blue in readiness for a future purchase and..
Buckle and keepers are fine, strap is perfectly comfortable and I love how it looks on the Steinhart. Even my wife commented how much it changed the look of the watch when i slipped it on instead of the Olive green its been on recently
I do love a NATO.
I've done the same, I bought 5 of them, different colours, stripes etc, I don't see the point in paying any more than £5 for one.
I use sethandco and sectime on eBay. Great value and quality for the price, less than a fiver each.