HOPE SOMEONE CAN HELP. I HAVE AN OMEGA WRISTWATCH CAL 28 THAT I HAVE JUST OVERHAULED. I PUT IN A NEW MAINSPRING AND ESCAPE WHEEL. THE BALANCE HAS GOOD MOTION (265) AND A BEAT ERROR OF 0.3MS. I JUST CANT GET IT TO RATE ON MY ELECTRONIC TIMING MACHINE. I HAVE ONLY REALLY WORKED ON POCKET WATCHES TILL NOW AND HAVE NEVER RAN INTO THIS. WHAT WOULD CAUSE A WATCH TO RUN VERY SLOW AND STILL HAVE GOOD AMPLITUDE?