Crown for watch in rose gold plated 5.4 millimeters fit stem 0.9 mm tap 10

rose gold plated crown diam. 5.4 mm diameter 5.4 mm high 2.7 mm fit case tube approx. 2.5 mm fit 0.9 mm stem(tap 10) I have no clue about the rose gold alloy this crown is plated(copper % & yellow gold) … the original box is lost in the watchmaker estate… Good Luck x3125 POSTAGE FEES & HANDLING Postage fees will be paid by buyer SATISFACTION GUARANTEE Return Privilege: 14 business days upon reception