42 mm stainless steel; automatic (Cartier calibre 049); steel bracelet; date at 3; ~8.4 mm thick; Ronde Solo de Cartier: steel bezel, silvered opaline dial with Roman numerals, railroad minute track with 24‑hour ring, blued sword hands, beaded crown with synthetic spinel, sapphire crystal; ~30 m WR; bracelet or alligator strap. Often cross‑tagged as numeric code 3802 on dealer pages.