For me, it depends on two factors. Where you live and how expensive the watch is. For a watch less than 2k Euros I'd wait for the malfunction. For more expensive watches, if I had reasonably easy access to a reliable repair centre or the manufacturer I'd do the maintenance.

A. JLC, Sinn, CWard, Timex, MVMT

I will miss Casio and Grand Seiko but JLC, Sinn, and CWard, I mean, cmon!

Thanks for the recommendation. I will have a look.

Good thing I can't afford it 🤭

I wish you to find the GMT that will convince you to add it to your collection ;)

These are beautiful!! 🤩 I never thought of the 24h GMT hand as a "sandglass". That's an excellent use of the GMT hand!