Scarce & Co is an. Official Casio Authorised Dealer. The Casio products are brand new in original packaging and guaranteed to be authentic. Join the 40th anniversary celebrations marking G-SHOCK milestones with a selection of signature revivals in solid, time-tested all-black. In homage to the brand’s evolution, these special designs memorialise iconic models from the past with their names hot-stamped on the band to textural, indented effect. On the DWE-5657, DW-6640, and GA-2140, a side button is engraved with a star in a nod to the 40th anniversary, as is the GA-114 with a star printed on the watch glass. The band and bezel of every model in the line are made with bio-based resins. The 40th anniversary logo designed by Eric Haze is engraved on the case back, and also appears in silhouette when the light button is pressed on the DWE-5657 and DW-6640. With four stars for 40 engraved on the band loop and other special details, these limited-edition timepieces are heirs to G-SHOCK history. Case / bezel material: Carbon / Bio-based resin. Carbon Core Guard structure. Full auto-calendar (to year 2099). Button operation tone on/off. Accuracy: ±15 seconds per month. Battery life: 3 years on SR726W X 2. Case size (L× W× H): 48.5 × 45.4 × 11.8 mm. Compatible band size: 145 to 215 mm.