Bulova Sutton Automatic Skeleton Dial Sophisticated design with full exhibition dial and case-back. Stainless steel screw-back case, skeletonized black three-hand dial revealing the intricate workings of the self-winding 21-jewel movement, domed mineral crystal, stainless steel bracelet with push-button deployant clasp, and water resistance to 30 meters. Case size 43 mm.