Heart-racing design meets sleek chronograph functionality in the Formulai. Case Size: 42mm Three chronograph subdials, a quick-set date window, and a fixed tachymeter bezel bring sharp functionality to a classic form. The 891's full chronograph functionality is fueled by a Japanese VK63 quartz movement, bringing precision and power to your wrist. Buckle up for your fast-paced life with a push-button deployant clasp on the 891's fully adjustable stainless steel link bracelet.