AlexSunrise
3715
Hi, Christian
That is a beautiful Chronometer!
I would say not to worry too much about damaging the glass, which I’m inclined to say it might be mineral glass.
If you feel uneasy it might be worth reaching out to the manufacture and ask to buy a couple of spares for your peace of mind, much like how the 2009 tribute to Polaris release came with a spare plexi.
Enjoy wearing your Dad’s JLC,
Alex