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Family Run Business Since 1978

G-Shock Men's Alarm Chronograph Watch GD-400MB-1ER

Product Code: GD-400MB-1ER
  • Now $92.36
  • (FREE UK Delivery)
  • RRP $116.91
Item in Stock | Usually dispatched within 24 hours
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Family Run Business Since 1978 Click here to find out more
Free Next Day Delivery On All Orders Over £60*
Price Match Available Click here to view the T&C’s ›
  • Quartz Movement
  • Black Resin & Stainless Steel Case
  • Black Rubber Strap
  • Case Width Approx 55mm
  • Case Depth Approx 17mm
  • LCD Dial
  • Automatic Calendar
  • Chronograph / Stopwatch & Countdown Timer
  • Backlight
  • Water Resistant 200M
  • Casio G-Shock 2 Year Guarantee
  • Supplied With G-Shock Gift Box


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

Shock resistant
Shock-resistant construction protects against impact and vibration.

Display Flasher
A light diode flashes as soon as an alarm, a countdown-time or the hour signal has been reached.

4 time zones display
Local times can be called up quickly and easily for four different time zones.

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

Stopwatch function - 1/100 sec. - 24 hours
Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 24 hours.

Timer - 1/1 sec. - 24 hours
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. They The time can be set to the nearest second and up to 24 hours 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.

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

3 Years - 1 Battery
The battery supplies the watch with sufficient energy for approx. three 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)

As far as high performing men’s watches go, the G Shock by Casio watch range will undoubtedly impress with its collection of chronograph watches and alarm watches suitable for everyday life. From digital watch faces to watches with luminous hands and dials, there’s something for everyone. Built to last, each watch is shock resistant with a variety of convenient additional features such as in-built digital compass, world time function, timer, stopwatch and automatic calendar functions. Excellent all-round watches for men, choose your preferred design with hints of colour or classic all black or white for a statement finish. For those who want something more from their daily watch, choose a G Watch from Casio.

Here at Hillier Jewellers we stock a fantastic selection of men’s watches that will suit all individual tastes and work well for all occasions. If you’re searching for the perfect designer watch, look no further than our ranges of watches from the likes of Hugo Boss, Citizen and Seiko for high quality timepieces that offer optimum style as well as practicality.

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UK Mainland Delivery

We offer free next day UK Mainland* delivery via DPD Local on all orders over £60.

This is a Monday to Friday service, Saturday & Sunday delivery is available for an extra charge.

*DPD Local UK Mainland does not include Channel Islands, Isle of Scilly, Scottish Islands, Scottish Highlands, Isle of Man and Northern Ireland.

Orders under £60 will be subject to a delivery charge of £4.75.

You may select which day you would like to receive your parcel during checkout. For Saturday & Sunday prices, please see pricing at the bottom of the page.

On the day of dispatch, you will receive an email with a link to your parcel details. This will take you to the DPD website and give you the option to change the delivery date, delivery to a neighbour or DPD Pickup Shop, return to sender or upgrade the delivery.


We endeavour to process all orders placed before 2:30pm on the same day, however we cannot always guarantee this during busy periods.

Orders received after 2:30pm on Friday will not be processed until the following Monday


The quoted delivery time is an estimate only and we cannot guarantee that it will get there on the specified day, especially if there is a problem with the courier (road incidents, floods, heavy snow etc)


All deliveries require a signature upon receipt. If there is no-one present at the delivery address, it may be left with a neighbour or DPD may leave you a "Sorry we missed you" card with details of how to collect / arrange a redelivery for your item. If you’d like any special notes adding to the delivery note, please contact us.

It is your responsibility to collect your item or arrange a redelivery. If you do not collect your items or have them delivered within several working days, then your parcel will be sent back to Hillier Jewellers where you may have to pay for redelivery.

Delivery Address

We can deliver to an address that isn’t your billing address, however, when placing an order you must use the correct billing address of where your method of payment is registered when prompted. You can also change the delivery address later on through the DPD website (see above)

International Delivery

Please note that due to the value of our items, any order placed from outside of the UK Mainland will be processed & dispatched at the discretion of Hillier Jewellers. All information provided must be correct for us to receive an authorisation from your issuing bank. If the information we receive from you is incorrect, or we are unable to receive sufficient authorisation from your issuing bank, your order will be cancelled & you will be notified as to the reason(s) why.

Returns Policy

All U.K. Mainland orders placed on will have 14 WORKING days to return any items in their original condition which are no longer wanted, faulty etc. for a full refund (this is 14 working days from receipt of goods, not from ordering). If we receive any returns after 14 working days, we will have no alternative but to send your items back to you, as we will no longer accept anything after 14 working days have expired. Hillier Jewellers advise that any product which you wish to return is sent via a track-able postal service. Hillier Jewellers are not responsible for lost or damaged items which are returned. Hillier Jewellers are not responsible for return postage costs unless an item is faulty. If a watch bracelet has been altered all links must be present

When will my refund be processed?

We aim to process your refund your within 5 working days of us receiving the item back. During busy spells this may take a day or two longer.

You will be refunded to the full price of the returned products to your original payment method and we do not charge any 'restocking' fees. If you have specifically upgraded your shipping options, (e.g. paid extra for Special Next Day Delivery etc), this additional amount is not refundable.

In the event that an item or its packaging (watch / jewellery box) is returned to us in a damaged state, we reserve the right the refuse the return and the goods will be sent back to you. In the result of minor damage to an item or its packaging, we may offer a partial refund. If the packaging alone is damaged, then a flat 10% will be deducted from any refund (excluding limited edition items with special packaging)

For hygiene reasons we cannot refund or exchange the purchase of earrings