Casio Module 3459

Module 3459 is a quartz caliber manufactured by Casio, introduced in 2018 as part of the G-Shock lineup. It powers the analog-digital GA-2100 series, commonly known as the CasiOak, and features Casio's Carbon Core Guard structure that embeds the case in a carbon resin sheath for improved shock resistance. The movement is produced in-house by Casio and remains in production.