Case: Stainless steel, 18K white, yellow, or rose gold; plain or (3.30ct.) pave diamond. Dial: Enamel, mother of pearl, stone or pavé diamond. Strap & Buckle: Rubber. Silk, alligator, stainless steel, 18K white, yellow or rose gold, or with pavé diamond (7.50 or 10.50 ct.)