Casio to Release Charles Darwin Foundation Collaboration G-SHOCK Watches

Featuring Designs Inspired by Creatures of the Galápagos Islands 
Made with Bio-Based Resin for Less Environmental Impact

Casio Computer Co., Ltd. announced today the release of new additions to the G-SHOCK brand of shock-resistant watches. The three new GW-B5600CD watches are the brand’s latest collaboration with the Charles Darwin Foundation, an organization that engages in environmental conservation activities in the Galápagos Islands.

The Charles Darwin Foundation is an international nonprofit organization committed to conserving the natural environment of the Galápagos Islands. The organization is involved in a range of activities, including surveying the Galápagos Islands’ marine and terrestrial life and ecosystems and promoting island nature conservation efforts. The latest collaboration model marks the second partnership between G-SHOCK and the Charles Darwin Foundation, following the first in 1999.

The new GW-B5600CD shock-resistant watches feature designs incorporating silhouettes of creatures that live in the Galápagos Islands, along with the rich natural environments where they live. While based on the GW-B5600, a timepiece equipped with radio wave reception and Tough Solar charging capabilities, the new GW-B5600CD watches feature a bezel and band made with bio-based resin produced using renewable organic resources.

Each of the three watches features a face with a unique design motif: a hammerhead shark in an ocean environment for the GW-B5600CD-1A2; a Darwin’s finch amid the foliage of a Scalesia forest, one of its preferred habitats, for the GW-B5600CD-1A3; and a Galápagos giant tortoise in a rocky location, one of its preferred habitats, for the GW-B5600CD-9. Silhouettes of each featured creature also appear on the LCD when the backlight is illuminated.

The Charles Darwin Foundation logo is engraved on the case back, and a Spanish-language statement meaning “I support Galápagos conservation” is printed on the band. A portion of the proceeds will be used to support the Charles Darwin Foundation’s conservation activities.


Featured Wild Creature Motif


Hammerhead shark

GW-B5600CD-1A3Darwin’s finch
GW-B5600CD-9Galápagos giant tortoise

Charles Darwin Foundation
Founded under the auspices of UNESCO and the IUCN, the Charles Darwin Foundation is an international nonprofit that has been at the forefront of science and conservation action in Galápagos since 1959. Our scientists are driven by a common purpose: to safeguard the unique biodiversity of one of our world’s most important natural treasures. At present, CDF manages over 25 research, conservation and educational projects across land and sea, working hand in hand with the Galapagos National Park and international NGOs looking to maximize sustainable impact. Our work is only possible thanks to the extraordinary community of donors that support us every day. Thank you for making an impact with us. For more information please visit or on Instagram @charlesdarwinfoundation 


GW-B5600CD-1A2 / GW-B5600CD-1A3 / GW-B5600CD-9
Water Resistance
200 meters
Radio Frequency
77.5 kHz (DCF77: Germany); 60 kHz (MSF: UK); 60 kHz (WWVB: USA); 40 kHz (JJY: Fukushima, Japan) / 60 kHz (JJY: Kyushu, Japan); 68.5 kHz (BPC: China)
Radio Wave Reception
Automatic reception up to six times a day (except for use in China: up to five times a day)
Bluetooth® low energy
Signal Range
Up to 2 meters (may differ depending on surrounding conditions)
World Time
5 world times selected from 39 cities (39 time zones,* auto summer time (DST) switching) and Coordinated Universal Time, home time/world time city swapping
* May be updated when connected to a smartphone.
1/100 second (00’00”00 to 59’59”99) / 1 second (1:00’00” to 23:59’59”); measuring capacity: 23:59’59.99″; measuring modes: elapsed time, split time, 1st and 2nd place times
Countdown Timer
Measuring unit: 1 second (maximum 24 hours)
5 daily alarms (with 1 snooze alarm); hourly time signal
Mobile Link Features*1
(Wireless linking with Bluetooth® devices)
Auto time adjustment
Easy watch setting
Approximately 300 world time cities + user-added point
Time & place
Phone finder
Other Functions
Low battery alert, power saving, full auto-calendar, 12/24-hour format, button operation tone on/off, day display (in English, Spanish, French, German, Italian or Russian), full auto LED backlight (Super Illuminator and afterglow: 2/4  seconds,  fade-in/fade-out afterglow
Power Source
Tough Solar power system (solar-charging system)
Continuous Operation
About 10 months after full charge, using all functions but without solar charging 
About 22 months with the power-saving function ON after full charge
Size of Case
48.9 × 42.8 × 13.4 mm
Total Weight
Approx. 53g

*1 Requires downloading the dedicated CASIO WATCHES app.
・The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Casio Computer Co., Ltd. is under license.