Restaurants, The Hamptons

THE NINES • Getaways 

• Tutto Il Giorno (Southampton/Sag/EH), useful additions to each town, reserve

• Sag Harbor Tavern (Sag Harbor), newcomer from Red Hook slinging Brooklyn’s best burgers out east, reserve

• Beacon (Sag Harbor), hard to beat waterfront dining in Sag, reserve

• Arthur & Sons (Bridgehampton, above), just-opened Italian-American import from West Vi…