Daniel Wellington Dapper Collection Japanese Quartz Watch With A Brown Coloured Leather Strap, 40mm Rose Gold Plated Stainless Steel Case & A Black Coloured Dial. Featuring a classy brown leather strap and an elegant black dial, the Classic St. Mawes proves that perfection in engineering not only is a possibility, but a reality. Diameter: 40mm Case thickness: 6mm Strap width: 20mm Adjustable length: (Min - Max) 165-215mm Interchangeable straps Water resistant: Up to 3 ATM (Rain resistant)