Select Item ST-5741-6 Arbor left for mainsprings in brass,for watchmaker's, no 06..BERGEON 2729-MNG NO 06 Swiss made..Right ST-5741-5 Arbor left for mainsprings in brass,for watchmaker's, no 05..BERGOEN 2729-MNG NO 05..Swiss made Right
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Arbor left for mainsprings in brass, for watchmaker's, NO.05 or NO.6 BERGOEN 2729-MNG NO 05 or 2729-MNG NO 06 Swiss made Right
Interchangeable with Bergeon drums; allows you to turn a right hand winder into a left hand winder. These arbors for mainspring winders are for left hand winding. Six sizes are available from (00) 5.3mm to (07) 10.8mm diameters.
