The Casio G-Shock GAB2100DF-4A, nicknamed the "Sally Lightfoot Crab," is the fourth collaboration with the Charles Darwin Foundation, dedicated to environmental conservation in the Galápagos Islands. This watch draws inspiration from the vibrant Sally Lightfoot Crab found on the islands' shores, reflected in its striking red and orange colorway.

• Inspired by the Sally Lightfoot Crab of the Galápagos Islands.
• Features a bold red and orange color scheme.
• A graphic of the crab raising its claws is present on the indicator hand and the band loop.
• The dial includes a silhouette of the Galápagos Islands.
• Based on the GAB2100 model, incorporating Smartphone Link and Tough Solar capabilities.