Combine first 3 ingredients in a large zip-top plastic bag; add scallops. Seal bag, and shake to coat.
Heat oil in a large nonstick skillet over medium-high heat. Add scallops; cook 3 minutes on each side or until done. Remove from pan; keep warm.
Add wine and vinegar to pan; cook 3 minutes or until slightly thick, stirring with a whisk. Stir in scallops; remove from heat. Garnish with parsley sprigs, if desired.