Mens Rubber Bi Green Dial Watch In Black

The Casio G-Shock G-Shock 51 GA-110CD-1A3ER is a oversized watch built around a black resin case and a green dial. It measures 51 mm across.

Case and Wrist Presence
The case measures 51 mm in diameter, worked in resin. It is finished in black throughout. At 51 mm this is a genuinely large watch. It sits best on a wrist of 18 cm or more, where the case can span the flat of the wrist without overhanging the edges.

Reading the Dial
A green dial sits behind the crystal. Against the black case that gives you a clear tonal separation between face and frame. The hours are marked with sticks.

Chronograph registers are recessed into the dial, which adds depth to the face without crowding the hour track.

Movement and Functions
A quartz movement drives the watch. That means accuracy which needs no daily attention, no winding routine, and no rate drift to correct.

Chronograph - stopwatch timing from the dial
Stopwatch - elapsed-time measurement
World time - multiple zones read from the dial
Water resistance - 20 ATM (200 metres)
Mineral crystal - protecting the dial
Strap, Clasp and Fit
The strap is black resin. It closes on a pin buckle.

Water Resistance and Everyday Durability
The watch is rated to 20 ATM, or 200 metres of static pressure. In practical terms that covers rain, hand washing, showering and recreational swimming. It is not a dive watch, so leave it behind for scuba diving and keep it away from high-pressure water jets. Make sure the crown is fully seated before any contact with water.

A mineral crystal protects the dial - harder than acrylic and more shatter-resistant than sapphire, which is a sensible trade-off on a case this size.

Who This Watch Suits
Larger wrists that swallow a conventional 40 mm to 42 mm case
The buyer who wants unmistakable wrist presence without a precious-metal price
Building a green-led accessory wardrobe
Anyone who will actually use a stopwatch - or simply wants the busier dial that comes with one
Daily wear that includes rain, washing up and the occasional swim
Gift buyers looking for something recognisable, boxed and properly warranted
Styling Notes
Green has moved from novelty to staple. It works against brown leather, cream and navy, and reads as a considered choice rather than a safe one.

Care and Maintenance
A watch at this level rewards very little maintenance, but the little it asks for makes the difference between one that still looks sharp in five years and one that does not. Have the battery replaced by a watchmaker rather than a kiosk - a proper service reseats the case gasket at the same time, which is what actually preserves the water rating. A flat battery left in the case is the single most common cause of avoidable movement damage. Rinse the case in fresh water after a swim, especially in the sea, and dry it before it goes back on.

Keep it clear of perfume and solvents, off the speaker on your desk, and out of direct sun when you take it off.