Seller: horo-parts (6.179) 99.9%, Location: Lisbon, Ships to: Worldwide, Item: 251168809816 Condition: NEW ITEM, Age: Contemporary/ Modern, Type: Clock Parts, Sub-Type: Keys, Winders, Clock Type: 400 Day, Anniversary, Jahresuhr, Mantel, Desk, Details: High quality solid brass clock winding key that fits Gustav Becker / GB / BHA 400 day / Anniversary clocks. Key size no. 7 (4.00mm) * * * As a collector of 400-Day Clocks I know them well, so should you need assistance regarding the selection of any parts for your clock, please do not hesitate to ask, I will be most pleased to help. * * * I ship worldwide and usually dispatch the very same day of receiving payment, aiming for the highest possible turnaround and service level. * * * Thank You!