The length of Jacket sleeves has gone up and down as fashion changes.

The current length that shows 1" of shirt cuff was started by Johnny Carson of The Late Show fame.

He liked to "shoot" his cuffs and thought 3 to 4 inches of shirt sleeve showing when he raised his arms looked balanced (White of shirt sleeve to white of shirt collar) on camera.

Before Johnny however Jacket cuffs were correctly worn between the first and second knuckle of the thumb.

I remember when I was fitted for my Dress Blues I asked the tailor the correct length of the sleeve and was told the second knuckle of the thumb.

Years later I asked the tailor making my Savile Row Suit and he said the exact same thing.

I have worn all my Jacket sleeves at this length ever since.

At this length you see no shirt sleeve when standing with the arm at the side. When you bring your arms up you should see 2-3" of shirt cuff.