Don’t know what year your 900 is Jez? ‘02 onward clocks come apart easily enough if you’re careful
http://www.ukmonster.co.uk/monster/s...ad.php?t=20161
I took mine apart and sealed them with silicone grease to stop them misting up, I’ve never dissasembled the main board/faces/needles though.
Although looking back at Darry’s old post he got the needles out ok, perhaps his photos will offer you a clue Neil?