Having bought a Citizen NY0040 I realised that the crystal needed refreshing.
Rather than go with the standard mineral I decided to upgrade it to a domed sapphire from Crystaltimes.
I think the result was worthwhile:
https://i.imgur.com/JVXjt7V.jpg
https://i.imgur.com/V8EdXFv.jpg
https://i.imgur.com/JQxpUaW.jpg
https://i.imgur.com/KanP2JX.jpg
And yes, I should have done a deep clean on the bezel first!