40mm automatic mechanical watch GMT $ 69.53 Movement: Automatic mechanical movement Dial diameter: 40mm Thickness: 13mm Case: stainless steel case Clasp type: stainless steel safety folding buckle Strap circumference: 20cm Waterproof: 3ATM Strap width: 20mm Strap material: brushed stainless steel Table mirror: synthetic sapphire glass table mirror Function: luminous/calendar display Bezel material: ceramic bezel