![Large Winged SE Clock Key 5.25mm (10591791567)](http://perrinwatchparts.com/cdn/shop/products/74.262-6to16-300_300x300_60ac5279-4f2b-4283-bd21-319f61f73eec_300x300.jpg?v=1612779732)
Large Winged SE Clock Key 5.25mm is a single ended key made of brass. A Large Winged SE Clock Key 5.25mm does not have a logo printed on the key and fits a winding arbor square of 5.25mm. This equals a key stamped with the number 12. The larger wings on this key allows the user a better grip when winding a clock.