Let's move back a few steps. Is the movement in properly serviced condition, with worn parts having been replaced, completely disassembled, surgically cleaned, and re-lubricated using dedicated watch lubricants? If no to any of the above, all bets are off when it comes to stable and predictable behavior.
The movement is a Ramon special, it was striped to the main plate, everything except the balance assy mainspring barrel assy and the pallet fork was put through an ultraclean, then given a bath in Naptha based solvent.
Reassembled using Synta 9010 on all the pivots except the pallet fork pivots which i left dry, and also a dab on the diashock jewels. The mainspring barrel was opened and a dab of Mobeius 8000 put in, i don't have the expertise to refit mainsprings yet. The barrel arbor ends was lubed with Mobeius 8301. Topside cannon pinion, and date train wheel pivots were lubed with Mobeius 8000.
I now always check the amplitude set up using the method that Noah described in a previous thread, by aligning the roller jewel with the pallet and escapement holes in the bare mainplate.
Worn parts, ive checked side play, endfloat and cleanliness, but again its still something im learning and im inexperienced.
I can hear you "tutting" from here.
:57::57::57:
Its been running fine for a couple of months but was a minute slow over 24 hrs. After changing hands and dial, it now runs 2 mins slow over the same period and moving the regulator bar makes no difference.
BG. ive been wearing it for a week now, no difference
Time to pull it apart and start over again?