Maroon Leather 3 Button Front Vintage Jacket

Maroon 3 Button Front Vintage Jacket with front side pockets. Back with upper yoke, shoulder to shoulder is 15”. Arms are slightly gathered at shoulders with inseam length being 17”. Measurements are taken laying flat across underarms is 17”, at hem is slightly curved is 22”, and the length is 22”. No tags or size noted. I think a size medium? EUC