The smaller vivid pink G-Shock GMAS145PK-4A is now available in the U.S. This is the third pink model made in support of the pink ribbon campaign, which promotes awareness about the critical role of early detection, diagnosis, and treatment in combating breast cancer. Casio America Inc. is donating $25,000 to the Breast Cancer Research Foundation in 2025, independent of any sales amount. (In Japan, 5% of sales will be donated to the NPO J.POSH.) There doesn’t appear to be any difference between this GMA-S145 model and GMA-S140 models, and the “145” designation probably has something to do with its special status. The watch comes with exclusive packaging and will also be sold at select retailers.
View GMAS145PK-4A at casio.com/us












