G-Shock GWS5600U-1 Mizuno Technologies Carbon Fiber Band Square Hamilton ODC X-03 refer to the Google check

refer to the Google check page

The Perpetual Calendar Manufacture Tourbillon guarantees an exceptional level of performance and the highest standards of craftsmanship distinguished by the features mentioned above

sapphire front crystal

2 mm / 142g

they are still in active use today

G-Shock GWS5600U-1 Mizuno Technologies Carbon Fiber Band Square Hamilton ODC X-03 refer to the Google checkThis model is made shock resistant by its materials. Jointly developed with Mizuno Technics Co., Ltd., this model features a strong band made hard to cut by inserting carbon fiber with excellent tensile durability into resin. With attention to even the smallest details, carbon fiber is inserted around the spring bar of the case connecting lug, around the buckle, and into the free loop, etc. Titanium is used for the metal parts like the back cover,