What I am wearing today (12 February 2015)

What is the difference between a suit jacket and a sports jacket? Can you distinguish between the two?

Today I am wearing  black/white hound’s-tooth sports jacket with two lower patch pockets and smoked Mother-of-Pearl  buttons, a blue/white striped shirt with white collar and French cuffs, a dark blue (almost black) silk knit tie, a white linen pocket square with dark blue borders, a pair of black suede Tassel loafers, and a Chaumet Automatic watch in stainless steel in a black leather strap.

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2015021207 Chaumet stainless steel watch 1