G-Shock GN-1000B-1AER G-Shock

Code: GN-1000B-1AER
  • £208.00
  • (FREE UK Delivery)
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From functionality to design, the new GULFMASTER Twin Sensor model supports the men of the sea and their activities in harsh environments. Engineered to withstand the rigours of maritime activity, supporting features include Tide Graph, Digital Compass reading, Thermometer sensors, Moon data, all complimented by a Super Illuminator LED Light function.

  We are a Casio UK authorised dealer

Brand new boxed stock with full retail boxes & paperwork

2 year international warranty


Super-Full-Auto-LED light 

If the ambient light fades, a turn of your wrist illuminates the watch display particularly brightly and in coulor.


Shock-resistant construction protects against impact and vibration.


A built-in direction sensor detecs the magnetic north.

Thermometer (-10°C / +60°C) 

A sensor measures the ambient temperature around the watch and displays it in °C (-10°C /+60°C).

Moon data display 

The phase of the moon is shown on the display based on your current latitude and longitude.

Tide graph display 

Tidal movements are displayed graphically based on your current latitude and longitude, and the lunitidal interval.

World time function 

Displays the current time in major cities and specific areas around the world.

Stopwatch function - 1/100 sec. - 1 hour 

Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 1 hour.

Timer - 1/1 min. - 1 hour 

For fans of precision: the countdown timers help you to remember specific or recurring events by giving off an audible signal at a preset time. The time can be set to the nearest minute and up to 1 hour in advance.

5 daily alarms 

The daily alarm reminds you about recurring events with an acoustic signal at the time you have set. You can also activate hourly time signal that indicates each full hour. This model has 5 independent alarms for flexible reminders of important appointments.

Hand Moving Function 

With a push of a button, hands are moving and permit a free visibility of functions like stopwatch or date.

Button tones on/off 

The button tones for using the mode button can be turned off. This means that the watch no longer beeps when switching from one function to another. Preset alarm or countdown timers remain active when the button tones are deactivated.

Automatic calendar 

Once set, the automatic calendar always displays the correct date.

12/24-hour timekeeping 

Times can be displayed in either a 12-hour or 24-hour format.

Mineral glass 

The tough, scratch-resistant mineral glass protects the watch against unsightly damage.

Resin case 

Resin band 

Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.

2 Years - 1 Battery 

The battery supplies the watch with sufficient energy for approx. two years.

Water resistance classification (20 bar) 

Perfect for free diving without scuba gear: the watch is water resistant to 20 bar / 200 metres. The metres value does not relate to a diving depth but to the air pressure used in the course of the water resistance test. (ISO 22810)


+/- 15 sec seconds per month

Type of battery

SR927W x 2


approx. 50,5mm x 53,4mm x 15,9mm (H x W x D)


approx. 82,0 g

Review Summary - 5 out of 5 based on 3 ratings.
G-Shock GN-1000B-1AER G-Shock

My boyfriend chose this watch as it has very many outstanding features, helpful as we are about to take an Arctic holiday. He did the research and he found the watch to be excellent value for money from the chosen retailer

November 15, 2016 |

GN-1000B-1AER G-Shock

Very nice wach. .....thanks a lot. ...

July 9, 2016 |

GN-1000B-1AER G-Shock

Very smart sporty watch perfect for sailing. Easy to use with many features essential at sea. It is an ideal size and weight being chunky, but not too bulky. Looks good where ever you are.

April 25, 2016 |