This Citizen Eco-Drive AW5000-24E Mens Watch is an excellent show of technology and stylish design. Eco-Drive is the best solar battery available in a watch, diminishing the need for battery replacement over years. This timepiece has a modern fabric strap that has amazing chemistry with this elegantly designed dial. Enjoy black and gold detailing, with a clean, easy-to-read watch face. Experience a calming reliability, with a date window and 24-hour time editions for your convenience. - Calibre J810- Eco-Drive - Stainless Steel Case- Nylon Strap - 42.6mm Case Size - Mineral Crystal - 100 Meters Water Resistant