Seiko HEC001J Lukia Essential Collection Limited Edition 。Gently worn Seiko Lukia model SOLAR watch. Mother-of-pearl face and rose gold numerals, hour markers and hands and crystals at 3 and 9. Combination shiny and polished stainless steel bracelet will fit a 6 inch wrist. The Seiko Solar watch does not require winding or battery replacements. Expose the watch face to light through daily wear and your solar watch will continue to keep time. If it stops from lack light exposure, put it under a light or in the sun to recharge. My wrist measures 6 inches, the inner watchband measures about 6 1/8 inches. I wear it very comfortably. It stays put but has a little play so it doesn’t feel tight. Clean, minimal design suitable for casual or dress.