Sekonda Armstrong Moon Phase Men’s Watch 30146 with Silver Alloy Case & Brown Leather Strap with Silver Dial. This watch has a round, ion-plated silver alloy case with a silver-white dial. The watch features a moon phase sub-dial which tracks the moon through a 29.5 day lunar cycle, printed moons and stars, tachymeter, a black minute track and day and date sub-dials. Fastened with an interchangeable brown, croco-grain leather upper strap and up to 50 metres water resistance. Case Width 40 mm Strap Width 20 mm Strap: Interchangeable brown croco-grain leather upper strap Water resistance up to 50 metres Movement: Myota Japanese Quartz Movement Battery: Silver Oxide