Though this might be interesting:
Recently I pulled my old Ames 2" dial indicator out of storage. Thought it would come in very handy for setting up stock in my 4 jaw chuck. It had been handed down from my Great Uncle who was a knitting machine mechanic in the USA and was probably made early post WW2.
The crystal had warped and yellowed and had even fallen out of the bezel but luckily the needle was unbent.
Thought I would Google "Ames dial indicators" and see if they even still existed and surprisingly they do. I thought I was drawing a long bow but contacted them with this picture and amazingly they can supply a replacement crystal. Obviously good design doesn't need to be changed.
They even gave me detailed instruction on how to mount the new one then said it cost $3, (yes three dollars). They then added don't worry about it just confirm your mailing address and we will mail it out free of charge.
In this day and age of disposable tools and equipment from Auto Barn, Bunnings, and Super Creep, it is refreshing to find a company that gives after sales service, especially 70 year after being sold!
I had two other similar dealings a few years ago with a defect in a Rigid flaring tool. Got a replacement without a sales docket after owning it 15 years and a Pelican Mitylite submersible torch which also was replaced no questions asked. Lifetime guarantees really do mean lifetime, and then some, to some companies.
Seems to be American companies are more willing to do this but would like to hear of other similar experiences especially here in Australia.
Cheers,
Jacques