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The G-Shock GM-5600 is the square 5600 with a hard stainless-steel bezel cover over its resin case. Its digital functions match the basic 5600, and it is a conventional battery-powered watch. Casio’s 5600-series comparison does not list solar charging, Bluetooth/app connectivity, automatic time adjustment, or world time for it. The steel bezel changes the look and adds weight; it does not add new features.
What the bezel changes
Casio describes the GM-5600 as using a hard stainless-steel bezel cover over resin. The base model, GM-5600-1, is listed with a resin and stainless-steel case-and-bezel construction and a resin band, so the metal is an outer accent rather than the whole case. Its product page also lists an inverted display for this model (Casio GM-5600-1 product page).
![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)
Compared with the DW-5600, the case material difference is the steel bezel cover. Both are resin-cased square models with resin bands, so the GM-5600 is the closer look to a metal-accented 5600 without moving to a full-metal case.
What stays the same as the 5600 core
The GM-5600-1 keeps the functions people expect from the square 5600 line, as listed by Casio:
#1 Best Overall
- Shock resistance
- 200-meter water resistance
- Stopwatch and countdown timer
- Alarm and hourly signal
- Full auto-calendar, listed through 2099
Casio lists a CR2016 battery for this suffix, with an estimated life of approximately two years (see the battery section below). Source: Casio GM-5600-1 product page.
Size and weight against its siblings
The table uses Casio’s Middle East & Africa 5600-series comparison for dimensions, weight, and feature listings, with the product pages used to confirm the GM-5600-1 and GM-S5600-1 figures. “Not listed” means the feature does not appear in Casio’s comparison chart; it is not a statement that the watch definitely lacks it.
Rank #2
- Case size (L× W× H): 49.6 × 43.2 × 12.9 mm
| Model | Case and bezel | Band | Dimensions (mm) | Weight | Solar and Bluetooth/app | Automatic time adjustment |
|---|---|---|---|---|---|---|
| GM-5600 | Resin with stainless-steel bezel cover | Resin | 49.6 × 43.2 × 12.9 | 73 g | Not listed | Not listed |
| DW-5600 | Resin | Resin | 48.9 × 42.8 × 13.4 | 53 g | Not listed | Not listed |
| GM-S5600 | Resin with stainless-steel bezel cover | Resin | 43.8 × 38.4 × 10.9 | 50 g | Not listed | Not stated |
| GW-B5600 | Resin | Resin | 48.9 × 42.8 × 13.4 | 53 g | Listed | Listed |
| GMW-B5000 | Stainless steel | Stainless steel and resin | 49.3 × 43.2 × 13 | 167 g | Listed | Listed |
Source: Casio Middle East & Africa 5600-series comparison, and Casio GM-S5600-1 product page for the GM-S5600 figures.
Against the DW-5600
The GM-5600 is 0.7 mm longer and 0.4 mm wider than the DW-5600, but 0.5 mm thinner (12.9 mm against 13.4 mm). Its listed weight is 20 g more (73 g against 53 g), about 38 percent heavier. Casio’s listing does not break down which parts account for that difference, so the bezel is the only construction change named for this comparison.
Rank #3
- Case size (L W H): 49.6 43.2 12.9 mm
- Metal-Clad Construction: Features a stainless-steel bezel with polished hairline and mirror finishes for a sophisticated textural appearance
- Comfortable Band Design: Soft silicone band with urethane film protection on top surface for outstanding abrasion resistance and silvery vapor deposition finish on transparent urethane underside
- Vivid Red LCD Display: Contrasting red LCD screen set against sophisticated silvery design creates a futuristic urban style
- Premium Details: Stainless-steel band loop components and meticulous attention to every detail deliver a luxe look and feel
Against the GM-S5600
The GM-S5600 is the smaller metal-covered option. It is 5.8 mm shorter, 4.8 mm narrower, and 2.0 mm thinner than the GM-5600, and it weighs 23 g less (50 g against 73 g).
Against the GMW-B5000
The GMW-B5000 has a nearly identical footprint (49.3 × 43.2 × 13 mm) but is listed at 167 g, which is 94 g more than the GM-5600. It is the full-metal option in this comparison.
Rank #4
What the GM-5600 does not add
Casio’s comparison lists solar power, Bluetooth/app connectivity, automatic time adjustment, and world time for the GW-B5600 and GMW-B5000. It does not list those functions for the GM-5600 or the DW-5600. For the GM-S5600, the chart lists no solar or Bluetooth/app function and does not state automatic time adjustment. If you need solar charging or phone-based time setting, the GM-5600 is not the model to choose; the GW-B5600 covers those listed features at 53 g in a resin case.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Battery life depends on the suffix
Battery estimates in Casio’s listings are specific to each model reference. Do not apply one variant’s figure to the whole family.
Best Value
- Streamlined design, striking functional beauty, shock-resistant construction - a toughness-driven G-SHOCK with a monochromatic modern industrial look
- The digital GM-5600, with iconic shape and metal bezel, and the analog-digital combination GM-2100 take on an achromatic color scheme that highlights the chic beauty of simplicity and functionality
- For the GM-5600BM and GM-2100BM, black ion-plating is applied to all bezel components other than the top surface, adding depth and solidity to the bezel and amplifying the chic, unified look
| Model reference | Listed battery | Casio’s estimated life | Source |
|---|---|---|---|
| GM-5600-1 | CR2016 | Approximately two years | Casio GM-5600-1 product page |
| GM-5600UB-1 | CR2016 | Approximately five years | Casio GM-5600UB-1 product page |
These are manufacturer estimates, not measured results. Check the exact model reference on the watch or its box before buying a replacement battery.
Quick Recap
Which 5600-series watch fits which need
- GM-5600: you want the square 5600 format with a steel bezel cover and accept more weight than the DW-5600.
- DW-5600: you want the lightest all-resin square model in this comparison (53 g).
- GM-S5600: you want the metal-covered look in a much smaller case (43.8 × 38.4 × 10.9 mm, 50 g).
- GW-B5600: you need solar charging and Bluetooth/app features, and you want to keep the light resin construction.
- GMW-B5000: you want full-metal construction and the listed solar and connected features, and accept 167 g.
What these figures do and do not cover
- Dimensions, weights, and feature lists are Casio’s published specifications. This article does not include independent wear, durability, legibility, or water-resistance testing.
- The comparison chart comes from Casio’s Middle East & Africa site. Specifications, model names, and included functions can vary by suffix and market, so confirm the reference for your region.
- This article does not cover current retail prices, stock, or specific seller listings.
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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.
