Drive De Cartier Stainless Steel Wristwatch Full Set, reference WSNM0004, roman numeral silvered dial with engine-turned center, sunk seconds, and date at 3, faceted synthetic spinel-set crown, on original leather strap with double adjustable folding buckle, 27-jewel automatic caliber 1904-PS MC movement with display-back, white outer and red inner box with instructional booklet, dia. 41 mm.