The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →The G-Shock GLX-5600RT is a surf-oriented digital watch, not a tide forecast that works independently of its settings. Casio says its tide graph and moon displays use entered date, time, and location information. That distinction is the practical lesson this model invites: a useful display is only as meaningful as the inputs behind it.
I can’t claim a personal lesson or first-hand experience without an account from the wearer. What can be established from Casio’s specifications is how the watch is intended to work—and what to check when its tide or moon information looks wrong.
![Casio Men's GWX-5600-1JF G-Shock G-Lide Tough Solar Radio Controlled Watch [Japan Import]](https://m.media-amazon.com/images/I/510un6cqyfL._SL160_.jpg)
What the GLX-5600RT is designed to do
Casio identifies the GLX-5600RT-9 as an older model in the G-LIDE GLX-5600 series. The G-LIDE line is aimed at surfers and extreme-sports fans; the GLX-5600 design adds a tide graph to the DW-5600 base. Casio describes that graph as showing tide level for a specified date and time, alongside moon age and a moon-phase graph. Casio’s GLX-5600RT-9 product page
That makes the watch a compact reference for tide and lunar information, rather than a promise that its graph will automatically represent every beach or current moment. The displayed data is tied to the watch’s settings, so a mismatch between the selected location, date, or time and the situation you care about can make the information seem wrong.
#1 Best Overall
What the watch offers beyond tide and moon data
| Specification | Casio listing for GLX-5600RT-9 |
|---|---|
| Case dimensions | 46.7 × 43.2 × 12.7 mm |
| Weight | 53 g |
| Water resistance | 20 bar / 200 meters |
| Battery | CR2025; approximately seven years of battery life |
| Accuracy | ±15 seconds per month |
| World time | 29 time zones / 48 cities |
| Other functions | 1/100-second stopwatch, countdown timer up to 24 hours, three multifunction alarms, and an electro-luminescent backlight |
Casio lists a resin case and band, mineral glass, and shock resistance. These are manufacturer specifications; they are not independent measurements or evidence of a particular wearer’s experience. Casio’s GLX-5600RT-9 product page
Why the tide or moon display may not match what you expect
Casio’s Operation Guide 5605 says the moon and tide display concerns the watch’s Home Site, and advises checking the time, date, and Home Site when the displayed information appears incorrect. It describes selecting a date to view tide information at a time and moon information for that date. Casio Operation Guide 5605
Rank #2
- Iconic G-SHOCK Square Design – The legendary square case that started it all, delivering timeless style and the rugged durability G-SHOCK is known for.
- Shock Resistant & 200M Water Resistant – Built to withstand impacts, swimming, snorkeling, and demanding everyday use.
- Super Illuminator LED Backlight – Bright white LED with afterglow ensures excellent readability in low-light conditions.
- Essential Digital Features – Includes 1/100-second stopwatch, 24-hour countdown timer, multi-function alarm, flash alert, and full auto-calendar.
- Reliable 5-Year Battery Life – Powered by a CR2016 battery for long-lasting performance with minimal maintenance.
That guide’s module applicability to the GLX-5600RT has not been confirmed here. For button-by-button setup, use the user guide linked from Casio’s GLX-5600RT-9 support page and confirm it matches your watch. Do not rely on the 5605 guide alone for model-specific instructions.
- Check that the displayed time and date are correct.
- Check the Home Site or location setting against the place whose tide information you want to view.
- Confirm the date and time selected for the tide display, rather than assuming the graph refers to an unspecified current moment.
A tide graph on a wristwatch should not be treated as a substitute for official local tide tables or safety guidance. The manufacturer documentation describes display functions, not a guarantee that the watch is an authoritative or safety-critical source for local conditions.
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Rank #3
- Case Dimensions: Case size measures 48.9 42.8 13.4 mm (L W H) providing a substantial presence on the wrist
- Stretchable Cloth Band: Polyester cloth band stretches up to 2.7 times its original length for an outstandingly comfortable fit throughout the day
- One-Hand Buckle Operation: Magnetic and mechanical locking buckle system allows you to snap closed and release smoothly with just one hand
- Shock-Resistant Construction: Features G-SHOCK's signature shock-resistant construction combined with water resistance for durability in various conditions
- Bio-Based Resin Components: Key bezel components are made from bio-based resin materials as part of the watch's construction
Availability depends on the market and colorway
Casio’s international page labels the GLX-5600RT-9 an “Old Model.” Its U.S. page for the orange GLX5600RT-4 says “Discontinued” and “Sold Out.” Those labels describe the specific regional listings and colorways; they do not establish that every variant is unavailable everywhere, or that no retailer has stock. Casio U.S. GLX5600RT-4 product page
Quick Recap
Best Value
- Smartphone Link
- Tough Solar
- Multiband6
- 20 Bar Water Resistant
- Japan Imported
Rank #4
- Case size (L× W× H): 48.9 × 42.8 × 13.4 mm
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
