Frederique Constant Automatic with E-Strap FC-303LGR5B4 Casio G-Shock G-Steel Bluetooth Connected GSTB200-1 Auto Neon Illuminator (Black light

Auto Neon Illuminator (Black light LED) with Afterglow Neo-brite luminous hands and markers

from gleaming stainless steel to lustrous rose gold

The remaining four models have highly polished stainless steel cases

It’s also compatible with our line of Varia™ cycling awareness devices

Frederique Constant Automatic with E-Strap FC-303LGR5B4 Casio G-Shock G-Steel Bluetooth Connected GSTB200-1 Auto Neon Illuminator (Black lightFrederique Constant Automatic with E Strap FC 303LGR5B4 Built by the watch industry experts that created the Horological Smartwatch, Frederique Constants E Strap is a logical next step to add smart functionality to existing watches. The ultra small buckle extension can hardly be seen, as it is thin and covered by the leather strap. The Frederique Constant E Strap is built on the full Horological Smartwatch Platform and its sophisticated functionality.