[Discussion] Found my grandfathers Seamaster from the 60s. In rough shape.

Found my grandfather’s Seamaster from the 60. It’s in rough shape. Can I get it serviced? It still runs but I think the date complication is stuck. The crystal is also cracked. The strap is also missing which I will need a replacement for provided that I can get it fixed and get it in good shape again. I hope this is enough characters to not get my post removed.