Cheap doesn't always mean bad.
We have heard that "you get what you pay for", but that isn't always necessarily so.
For example, these bezel inserts I thought to order the black, blue and GMT:
https://www.ebay.co.uk/itm/38mm-Plas...edirect=mobile
They are sold as plastic, but when they arrived they are actually made of a robust aluminium with a peel off plastic protective cover.
I fitted one to my home made sub-a-like below, and it is just fine.
I intend to try out an idea with the others, by coating with several layers of clear nail polish and then smooth any imperfections with 1500-grit wet and dry paper.
https://i.postimg.cc/rmZBHqc8/20181112-102852-1.jpg
For 99 pence, these are great value for money even if you have to wait several weeks for arrival.
Please post your own great value items - if you have any!
Bob.
P.S.
The strap is also a cheap and cheerful 2.99 ebay offering, I cut off and sealed the short keeper as I find them uncomfortable.