Invicta 3644 men's Speedway two tone blue dial chronograph watch carries a case diameter of 40mm and a case thickness of 14mm with 42mm case height. Featured on this model is a fixed bezel, textured screw down main crown with function pushers. The caseback on the Invicta 3644 is screwed on, maintaining the 200 meters water resistance. The bracelet is crafted in two tone yellow gold plated solid stainless steel and is secured using a fold over safety lock clasp. This dive watch has a blue dial with indexes hour markers. Invicta 3644 equipped with chronograph, 12/24-hour time and date display functions. Protecting the dial is a mineral crystal designed to resist scratches. Powering this stylish watch is Japanese made TMI VD53B-14 quartz movement.