Clockwork burst heart

I've done a couple of these now. It's pretty straight forward. All I did was hand hammer out a brass heart.You have to anneal it half way through, or whenever the metal becomes too hard from hammering.I then used a jewellers saw to cut out the shape out of the middle of the heart and curl the metal back. You have to do a fair bit of smoothing to make sure there is nothing rough or scratchy. I mainly use a stiff wire brush mounted in my bench grinder (Safety glasses!!) The clockworks are a complete watch movement.Quite a nice one, you can see several of the purplish jewel bearings.It was a bit tricky getting it to fit neatly in the back.I used a grinder to round off the edges of the watch movement to make it fit better and then glued it in there using a special epoxy designed for joining metals.I also glued a little brass disk on the back to neaten the appearance from behind.