Seiko Sports 100m Caliber: 7S26 (21 Jewels) Water resistant to 10 bars. Quick day & date change. Luminous hands and indexes. Screw in crown and case back. With Seiko solid links stainless steel bracelet. Made in Japan. Bezel diameter; 40mm Case width at crown: 43mm Case thickness: 13mm *Price includes shipping worldwide. 31-999168-W1