Elgin balance staff 16s 861 New Style or Old Model / axe de balancier

1 Axe de balancier Elgin / 1 Elgin balance staff. Caliber 861 16s. - Ronda 727, cal 861 old model, pivot 12 ,height 518, balance arbor 112, hairspring collet 85, roller 63. - Ronda 4296, cal 861 New Style, pivot 12, height 534, balance arbor 110, hairspring collet 80, roller 62.

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