This pattern is called “Jeanne” in Debbie Bliss Winter Essentials.

From Debbie Bliss Magazine Fall/Winter 2009:
Donegal Luxury Tweed Aran injects texture into a universally flattering shawl-collared pullover with double-ribbed collar, cuffs and hem. Four buttons create an au courant (and warm) double-breasted effect.

Additional materials needed:
4.50mm (US7) circular needle; 4 buttons

Measurements
Bust
97 (102, 111, 115, 124) cm
38 (40, 43 3/4, 45 1/4, 48 3/4) in

Length to shoulder
63 (65, 67, 69, 71) cm
24 3/4 (25 1/2, 26 1/2, 27 1/4, 28) in

Sleeve length
44 (44, 45, 45, 46) cm
17 1/4 (17 1/4, 17 3/4, 17 3/4, 18) in