AHN39 - 3 Piece Hand Nut Set for Regula Movements
AHN39 - Regula 3 Piece Hand Nut Set
Inside diameter of square nut is approximately 2.4mm (.097 inch).
Inside diameter of round nut is approximately 1.9mm (.075 inch).
Used on all 1 and 8 day Regula movements since 1970
**Fits most popular movement from Germany**