men's mechanical watch fully automatic winding diameter 39.8mm super movement sapphire face silver square watch, Slivery;brown

silver case 316l stainless steel interior literally blue surface sapphire wear-resistant glass with calendar design at 6 o'clock the level craftsmanship of the overall watch is equipped with a high-quality permanent and stable automatic movement with superior performance and accurate travel time. case diameter 39.8x47.5x9.08mm equipped with 316l stainless steel strap, high-quality butterfly buckle design middle button inlaid with blue spar the dial is plated in blue with a unique design the connection between the strap and the dial is perfect and unique and it has strong waterproof performance.syi