Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Bergeon Right Mainspring Winder 12mm by Bergeon Sold out $104.30 | / SKU 64-2729T-8 Availability: Translation missing: en.general.icons.icon_check_circle icon Out of stock 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Sold out Spinner icon Notify me when back in stock Email address Email me when available Bergeon Right Mainspring Winder 12mm Red point: on right. Outside Diameter of 12mm. Bergeon Right Mainspring Winders are available in 19 various outside diameters. Sold separately. See products 64-2729T-0 to 64-2729T-15.