Check the listing for details. HERMLE CLOCK REPAIR TOOL PART BARREL 340, 341 Series. Condition: New. Listed at 35.00 USD. MADE in Germany. This is genuine Hermle material. Included is the barrel and mainspring. Size# 41, Barrel diameter 41 mm, tooth plate outer diameter 48 mm total barrel height 21 mm, # of teeth 71.This item is used on the chime side. This item frequently needs to be used in clock repair, either as a replacement for breakage, or plain wearing out of the barrel teeth or axles. Guaranteed to be the highest quality in the market., machined to close tolerances. This is not cheap imitation India or Chinese parts.. Weight 6 2 oz. This size is the most commonly used in the floating balance and pendulum series. used on grandfather and grandmother units, also most spring driven wall clocks. . GOOD LUCK, AND THANKS FOR BIDDING M/S 21 x 40 x 1550 Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.