4.25mm Square Hole-Wide Wing Winding
Bavarian Clock Haus SKU: Key #8 Wide Wing
Key/8 Wide 2 5/8" wider winding wings make it easier to wind, otherwise same as Key #8+. Size 8+ Brass plated key generally fits all modern (since 1970) 3 hole German made movement 8 day wall and mantle clocks. 4.25mm square hole. Measure square winding post for fit.