Case size: 36 mm; Case thickness: 6 mm; Movement: Japan Citizen 1L22; Water resistant to 3ATM (resistant).With his black leather strap, as dark as the deepest parts of the ocean, the Classic Sheffield has been carefully designed to withstand the challenges of preserving its unique beauty. This minimalist masterpiece is proof that simple does not necessarily mean boring. This thin (6 mm) clock Daniel Wellington knows how to adapt to any occasion. Whether you should attend a formal event, whether you can play tennis or enjoy a nice sunny day outdoors – Daniel Wellington is the perfect companion. Not only that, with interchangeable straps have a clock unique and different for each day of the week.