Replacement Crystal for 1957 Rolex 6534 Model

Hoping more experienced members can help. Have recently acquired a 1957 6534 Oyster Perpetual Date with 1035 movement. Crystal is smashed a nd needs replacing. Is it safe to go with a generic replacement or is genuine the way to go. Obviously a big difference in price and can find many options available for generic versions of the 25-117 cyclops crystal needed. Can anyone suggest any better quality generic versions they may have had experience with or are they all the same

Thanks. Have ordered a couple from Cousins in the UK

Great watch! 👍 show us this "crown" after replacement.

Finally got the replacement crystal on and have to say pleased with the dial. Went with the Sternkreuz option in the end. Currently with the watchmaker for a new balance staff, crown wheel and service