Michael I don't think you will have a problem with the sleeve being too short if you are a short coat. Shoulder width plays a part in total sleeve length as well. Anyway nothing beats trying on so you can see when yours arrives tomorrow. FWIW I added 3cm to the standard sleeve length of my makers (admittedly italian) sizing. MJ Bale also have very long sleeves as standard, even slightly too long for me at 6"2.