G-Shock G-Steel Snake GSTB400CX-1A
Welcome in the Year of the Snake with a special edition G-STEEL crafted at the intersection of metal and resin. Celebrate 2025 with innovative form and design inspired by the ancient ouroboros. This slim GST-B400 features an ouroboros motif, the ancient auspicious symbol of a serpent eating its own tail, representing infinity and immortality.
This special timepiece pairs a silver-coloured metal bezel and black watch face with gold-coloured accents for a design that takes you smoothly from casual settings to formal occasions and back again. The side buttons and strip across the face from the 3 o’clock to 9 o’clock position add textural appeal with a snake pattern touch that nods to the Year of the Snake.
The case back is engraved with a special ouroboros illustration representing infinite possibility. The GST-B400 brings together smaller components and a thinner module to deliver an even slimmer profile, while still offering the Bluetooth connectivity and solar power charging you want for greater convenience and significantly less power consumption. Add to this the watch’s Carbon Core Guard structure, and you have the slimmest G-STEEL yet (as of December 2024), measuring just 12.9 mm from case back to bezel top, over a millimeter slimmer than the GST-B100.
Passionate attention to the smallest details — with large, easy-to-press stainless steel buttons, a resin band, and silver metal case featuring different finishes on the top and middle bezels — achieves an elegant, transformative look worthy of the Year of the Snake.
We try to stock as much as possible in our holdings at all times however due to fluctuations in sales trends and availability through Casio Australia we sometimes will not have every item in stock.
We dispatch all orders that are in stock the next business day or same business day when your order placed before 10am (Queensland time) providing we have the watch in stock.
RETURNS
We want you to be happy with your watch and therefore we will gladly refund any item for you within 30 days of dispatch. The item must be returned to us in new and unworn condition and include all components including the watch, tags, box and instruction manual. You will need to include your warranty card or receipt with your watch showing the date of purchase. Email us and we will reply with the appropriate information for your claim.
Casio Watch Repairs
G Life Watches is able to have your watch repaired for you.
Casio G-Shock Watch & Baby G Repair
Most common repairs required are just batteries and pressure testing or band replacements. Whatever is required we can arrange to have it repaired and returned to you as quickly as we can. Please click here to email us with your contact details, model number off the back of the watch (it will be letter(s) followed by numbers i.e. DW6900 or GA110 or similar) and colour (if applicable i.e. band colour, case colour etc) and we will be more than happy to follow up on the availability, time frame and cost estimate for your repair or part. Most repairs take around 3 weeks to complete and return to you. Parts are generally 1 week but can be up to 4 weeks.
G Shock Replacement Prices
The estimate of charges (note though this is a guide for most models, some of the more intricate models can be higher than the estimates here):
- Battery, seals and pressure test - $70 (Baby G) / $80 (G Shock) for most models
- Mudmaster / Premium series - battery, seals and pressure test - $95
- Replacement Bands (rubber) - $50 to $70 for most models
- Replacement Bands (metal) - $80 - $110 for most models
- Pins for bands - $7 for most models
- Replacement of watch case - $80 - $150 for most models
- Complete overhaul with a new module/movement in the watch - Contact us with your model number and colour for a tailored quote.
What to do with Broken Watches?
G Shock Battery Replacement
G Shock battery life ranges from two to six years, depending on how often you use the alarm or the backlight. Frequent use of either feature drains the battery pretty fast hence, the need for replacement. The life of the replacement battery, on the other hand, depends on how long it has been sitting on the shelf. Its shelf life is ten years in room temperature after which it goes through gradual degradation.
G Shock Strap Replacement
G Shock watches are known to last a lifetime, but the bands wear out after prolonged use. To replace them, place the watch facing downwards on a soft cloth, unhook the spring bars located at the base of each strap. Some models have the bars covered while others are exposed. Use a spring-bar removal tool to unhook and pull the band away from the watch. Repeat the process to remove the other spring bar. Replace them with the rod slots of the new band and use the spring-bar tool to fasten the bands. The procedure applies when replacing rubber straps. Metallic bands require a little tact hence, the need to engage a professional.
