If that is plexi glass and I’m not sure, you could polish out most of it away with Polywatch and a bit of elbow grease.
As a side do you have any history with the watch please share. I’m sure someone will come along with a place to source a replacement.
Nice watch by the way.
I am also a Seamaster 120 owner 😀
The code for the crystal you require is 063PZ5105. Sometimes it will be advertised without the first 3 digits so PZ5105. Try searching for one on Ebay
Я также владелец Seamaster 120 😀
Код необходимого кристалла - 063PZ5105. Иногда он будет рекламироваться без первых трех цифр, поэтому PZ5105. Попробуйте поискать на Ebay [/ QUOTE]
Thanks, I will take a look