Casio G-Shock

Men's Master of G-Land GDG-B100 Series 50mm Teal Strap Watch

The Casio G-SHOCK Master of G-Land GDG-B100 Series GDG-B100-1A3ER combines exceptional durability with advanced functionality, making it an ideal companion for demanding outdoor activities and everyday adventures. Part of the MUDMAN collection, this rugged digital watch features a bold black case complemented by a distinctive teal-green bio-based resin strap. Its Carbon Core Guard construction provides outstanding shock resistance, while specialist sealing offers protection against mud and dust. With 200-metre water resistance and a comfortable lightweight design, it is built to withstand challenging environments without compromising on practicality.

Designed for excellent visibility and performance, the GDG-B100-1A3ER features a high-contrast Memory-in-Pixel (MIP) LCD display with a red LED backlight for clear reading in bright sunlight and low-light conditions. Bluetooth connectivity links the watch to the Casio Watches smartphone app, providing automatic time adjustment, world time across 38 time zones and smartphone notifications. Additional functions include a step tracker, training measurements for distance, speed, pace and calories burned, a 1-second stopwatch, interval countdown timer, four daily alarms with snooze and vibration alerts. Further specifications include a mineral glass, quartz digital movement and an approximate two-year battery life. The case measures 63.6 x 49.6 x 16.2mm, weighs 66g and is paired with a bio-based resin strap.

At Francis & Gaye, we are proud to offer an extensive selection of genuine Casio and G-SHOCK watches as a trusted UK authorised retailer. As a family-run business, we pride ourselves on providing excellent customer service, competitive prices and expert product knowledge. Whether you are looking for the latest G-SHOCK releases or a classic Casio design, you can shop with confidence knowing that your purchase is supported by our commitment to quality and customer care.

If you’re near one of our stores in Coventry or Loughborough, you’re very welcome to collect your online order in person. Simply give our customer service team a call on 0800 977 4391 and we’ll make sure everything is ready for you when you arrive.

If you’re not local, or just short on time, we offer a range of delivery options to suit you. We have partnered with DHL, DPD & Royal Mail, options include free UK delivery services on orders over £50.00, to express delivery options to most destinations worldwide. All delivery options (excluding 2nd class) are fully tracked and insured for your peace of mind.

Read our Delivery Information page (opens in new window) for a list of all delivery options.

We want you to be completely satisfied with your purchase. If for any reason you are not, you may return your order within the periods below for a full refund or exchange; T&C's apply.

Not Wanted, Wrong or Arrived Damaged
JANUARY 22ND 2027

Orders Using Finance / Optional Insurance
30 DAYS

For full details please visit our Returns & Exchanges page (opens in new window).

We offer professional engraving on a range of items with precision and care. Whether you’re personalising a gift or adding a special message, we can help bring your idea to life.

Please visit our Engraving page for full details (opens in new window).