: Remove the movement with dial & hands attatched & push the
: crystal out from behind. Thumb pressure alone should be enough
: to remove the crystal & the inner Tachy ring will come out
: mounted within the crystal.

: - Darren

Dear Darren,

thank you for your instruction. This is exactly what I was looking for. Anyway, I have managed to remove the thin bezel using a razor blade; just gently pressed the blade against the side face of the bezel and twisted the blade to lift it. Now the plexi crystal is without the retaining bezel so it should be even easier to remove. I'll follow what you mentioned.

Thanks both of you for the replies.

All the best,
Ken