Joined
·
2,114 Posts
Does anyone here use a mainspring winder when refitting a mainspring into the barrel? I've finally got myself a Bergeon set after along time looking and was wondering what size you use for your Seikos? I'm on about the usual calibres 61xx, 62xx, 63xx, 70xx, 7Sxx etc. A number 7 seems to work OK but I feel the arbor is slightly too big, and worry it could deform the coil. The number 6 has a better sized arbor but the barrel is to small for the majority of Seiko springs.
Or am I just worrying unnecessarily?
Or am I just worrying unnecessarily?