G-Shock Premium Master of G-Air Gravitymaster Series Mens Watch GA1000-4A. Case size 50.8 x 52.1 with a thickness of 16.9mm. WR rating of 200m. Battery Quartz model. Spherical Mineral Glass. Resin & Stainless Steel finish. Approximate weight of 90gm.
Bold, rugged, and built for adventure, the Casio G-Shock GA-1000-4A is designed for those who demand performance in extreme conditions. Part of the Master of G Aviation Series, this watch combines advanced functionality with signature G-Shock toughness. Featuring Twin Sensor technology, it offers digital compass and thermometer readings on demand—ideal for pilots, explorers, and outdoor enthusiasts. The striking orange and black colour scheme makes a bold style statement, while the large 52mm case ensures visibility even in low light, thanks to the high-brightness LED backlight and Neobrite luminescent hands.
With shock resistance, 200-meter water resistance, world time, stopwatch, countdown timer, and 5 daily alarms, the GA-1000-4A is a watch engineered for serious use. Built to withstand the harshest environments while offering a standout aesthetic, the GA-1000-4A is a must-have for anyone who values durability, precision, and bold design. Perfect for professionals and G-Shock collectors alike.
Click HERE to see the full manual for watch model GA1000-4A
Ships in 1-3 Business Days from Sydney with Australia Post Express. Sydney customers can pick up on the same day from our Alexandria showroom an hour after placing the order by choosing Click & Collect as the delivery option.
2 year Australian warranty from Shriro Australia. StarBuy are Authorised online and instore stockists of Casio G-Shock Watches. All Casio G-Shock Watches are shipped with local and an international manufacturers warranty and in G-Shock original packaging.
WARNING - KEEP NEW & USED BATTERIES OUT OF REACH OF CHILDREN. THIS PRODUCT CONTAINS A BUTTON or COIN CELL BATTERY.
Swallowing may lead to serious injury in as little as 2 hours or death, due to chemical burns and potential perforation of the oesophagus.
If you suspect your child has swallowed or inserted a button battery immediately call the 24-hour Poisons Information Centre on 13 11 26 for fast 24/7 expert advice.
Examine all Watches & Clocks received and make sure the battery compartment is correctly secured, e.g. that the screw or other fastener is tightened. Do not use if the compartment is not secure.
Dispose of used button batteries immediately and safely. Flat batteries can still be dangerous.
Button batteries are hazardous. Keep batteries out of reach of children.
Never allow children to replace batteries in any device.
We recommend exhausted batteries be individually wrapped in tape to insulate them from accidental contact and dispose of separately.

G-Shock GA1000-4A
$469.00
$599.00
$599.00
G-Shock Premium Master of G-Air Gravitymaster Series Mens Watch GA1000-4A. Case size 50.8 x 52.1 with a thickness of 16.9mm. WR rating of 200m. Battery Quartz model. Spherical Mineral Glass. Resin & Stainless Steel finish. Approximate weight of 90gm.
Bold, rugged, and built for adventure, the Casio G-Shock GA-1000-4A is designed for those who demand performance in extreme conditions. Part of the Master of G Aviation Series, this watch combines advanced functionality with signature G-Shock toughness. Featuring Twin Sensor technology, it offers digital compass and thermometer readings on demand—ideal for pilots, explorers, and outdoor enthusiasts. The striking orange and black colour scheme makes a bold style statement, while the large 52mm case ensures visibility even in low light, thanks to the high-brightness LED backlight and Neobrite luminescent hands.
With shock resistance, 200-meter water resistance, world time, stopwatch, countdown timer, and 5 daily alarms, the GA-1000-4A is a watch engineered for serious use. Built to withstand the harshest environments while offering a standout aesthetic, the GA-1000-4A is a must-have for anyone who values durability, precision, and bold design. Perfect for professionals and G-Shock collectors alike.
Click HERE to see the full manual for watch model GA1000-4A
Ships in 1-3 Business Days from Sydney with Australia Post Express. Sydney customers can pick up on the same day from our Alexandria showroom an hour after placing the order by choosing Click & Collect as the delivery option.
2 year Australian warranty from Shriro Australia. StarBuy are Authorised online and instore stockists of Casio G-Shock Watches. All Casio G-Shock Watches are shipped with local and an international manufacturers warranty and in G-Shock original packaging.
WARNING - KEEP NEW & USED BATTERIES OUT OF REACH OF CHILDREN. THIS PRODUCT CONTAINS A BUTTON or COIN CELL BATTERY.
Swallowing may lead to serious injury in as little as 2 hours or death, due to chemical burns and potential perforation of the oesophagus.
If you suspect your child has swallowed or inserted a button battery immediately call the 24-hour Poisons Information Centre on 13 11 26 for fast 24/7 expert advice.
Examine all Watches & Clocks received and make sure the battery compartment is correctly secured, e.g. that the screw or other fastener is tightened. Do not use if the compartment is not secure.
Dispose of used button batteries immediately and safely. Flat batteries can still be dangerous.
Button batteries are hazardous. Keep batteries out of reach of children.
Never allow children to replace batteries in any device.
We recommend exhausted batteries be individually wrapped in tape to insulate them from accidental contact and dispose of separately.
G-Shock Premium Master of G-Air Gravitymaster Series Mens Watch GA1000-4A. Case size 50.8 x 52.1 with a thickness of 16.9mm. WR rating of 200m. Battery Quartz model. Spherical Mineral Glass. Resin & Stainless Steel finish. Approximate weight of 90gm.
Bold, rugged, and built for adventure, the Casio G-Shock GA-1000-4A is designed for those who demand performance in extreme conditions. Part of the Master of G Aviation Series, this watch combines advanced functionality with signature G-Shock toughness. Featuring Twin Sensor technology, it offers digital compass and thermometer readings on demand—ideal for pilots, explorers, and outdoor enthusiasts. The striking orange and black colour scheme makes a bold style statement, while the large 52mm case ensures visibility even in low light, thanks to the high-brightness LED backlight and Neobrite luminescent hands.
With shock resistance, 200-meter water resistance, world time, stopwatch, countdown timer, and 5 daily alarms, the GA-1000-4A is a watch engineered for serious use. Built to withstand the harshest environments while offering a standout aesthetic, the GA-1000-4A is a must-have for anyone who values durability, precision, and bold design. Perfect for professionals and G-Shock collectors alike.
Click HERE to see the full manual for watch model GA1000-4A
Ships in 1-3 Business Days from Sydney with Australia Post Express. Sydney customers can pick up on the same day from our Alexandria showroom an hour after placing the order by choosing Click & Collect as the delivery option.
2 year Australian warranty from Shriro Australia. StarBuy are Authorised online and instore stockists of Casio G-Shock Watches. All Casio G-Shock Watches are shipped with local and an international manufacturers warranty and in G-Shock original packaging.
WARNING - KEEP NEW & USED BATTERIES OUT OF REACH OF CHILDREN. THIS PRODUCT CONTAINS A BUTTON or COIN CELL BATTERY.
Swallowing may lead to serious injury in as little as 2 hours or death, due to chemical burns and potential perforation of the oesophagus.
If you suspect your child has swallowed or inserted a button battery immediately call the 24-hour Poisons Information Centre on 13 11 26 for fast 24/7 expert advice.
Examine all Watches & Clocks received and make sure the battery compartment is correctly secured, e.g. that the screw or other fastener is tightened. Do not use if the compartment is not secure.
Dispose of used button batteries immediately and safely. Flat batteries can still be dangerous.
Button batteries are hazardous. Keep batteries out of reach of children.
Never allow children to replace batteries in any device.
We recommend exhausted batteries be individually wrapped in tape to insulate them from accidental contact and dispose of separately.