Overview The NK0023-57L brings all the strengths of the Tsuyosa 60 line—solid 60-hour power reserve, integrated bracelet design, sleek 40 mm case—and adds a rose-gold touch paired with a modern blue dial, making it a stylish standout. Specifications Model NK0023-57L Movement Technology Caliber No 8310-C0A Movement Automatic-Powered by the release of a wound spring, mechanical movements never require a battery. Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm. Case Size (mm) 40 Warranty 3 Years Regional & International Warranty Power Reserve 60 Hours Weight (Gms) 141 Band/ Strap Type Stainless Steel Band Details Band Material Stainless Steel Band Colour Rose gold Clasp Push-button deployment clasp Water Resistance Water Resistant 5 Bar Case Details Glass Sapphire Dial Color Blue Watch Functions exhibition caseback 60-hour power reserve Sapphire with date magnifier integrated bracelet