The GWF-A1000XC-1A changes the Frogman’s exterior materials, not its dive rating: Casio lists a resin case, a layered carbon-fiber bezel, and a carbon-fiber/resin composite band. It retains the family’s ISO 200-meter water-resistance rating and core solar, Bluetooth, and radio timekeeping features. Despite the original title’s “hands-on” wording, the specifications below are manufacturer-listed; they do not establish independent wear or dive testing.
Which parts are carbon fiber?
Casio does not list the GWF-A1000XC-1A as having a carbon-fiber case. Its international product page specifies a resin case, a carbon-fiber bezel, and a carbon-fiber/resin composite band. The watch also uses Carbon Core Guard construction. Casio’s international product page identifies the model as an old model.
The Japanese listing adds detail about the bezel: it describes laminated carbon with a single orange layer. It also describes carbon-fiber-reinforced resin in the watch’s structure. The composite band has a clasp with an extender intended to fit over a wetsuit. These materials distinguish the XC variant’s exterior; they are not evidence that it outperforms other Frogman models underwater.
How the XC differs from the GWF-A1000-1A
Casio’s international listings show the most direct differences in the band, listed weight, and bezel material. The base GWF-A1000-1A has a resin band and weighs 119 g; the XC has a carbon-fiber/resin composite band and weighs 140 g. Both are listed with ISO 200-meter water resistance, Tough Solar, Bluetooth, and Multi Band 6 radio-controlled time adjustment.
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- The product video shows "fluorine elastomer band", but this product is a composite band (resin x fine resin with metal parts embedded). It also features a double locking one-push tri-fold clasp with an extension mechanism that allows you to easily adjust the band when wearing a wetsuit
- G-SHOCK "Frogman" series analog display model with ISO standard 200 m submersible waterproofing to support underwater missions
- Dive mode / Tide graph mode to support diving activities: Dive mode to show diving time and surface rest time. Tide graph mode displays tide information anywhere and current time in that city. Analog display of useful functions for diving activities
- Bluetooth Radio Solar: Support Bluetooth, standard radio wave time correction. Equipped with tough solar, it is stable to drive various functions
- Smartphone Link: Dedicated app allows you to easily set tide data around 3000 locations around the world in the app. You can also check the dive logs on your smartphone and enjoy the data measured on the watch side
| Specification | GWF-A1000XC-1A (international) | GWF-A1000-1A (international) |
|---|---|---|
| Case | Resin | Not stated on the cited page as a material comparison; Casio describes carbon monocoque construction. |
| Bezel | Carbon fiber | Not stated on the cited page as carbon fiber |
| Band | Carbon-fiber/resin composite | Resin |
| Dimensions | 56.7 × 51.7 × 19.7 mm | 56.7 × 51.7 × 19.7 mm |
| Weight | 140 g | 119 g |
| Water resistance | ISO 200 m | ISO 200 m |
| Power and time/link features | Tough Solar, Bluetooth, Multi Band 6 | Tough Solar, Bluetooth, Multi Band 6 |
Sources: Casio GWF-A1000XC-1A and Casio GWF-A1000-1A. The XC’s additional listed weight accompanies its different band and bezel package; Casio’s specifications do not establish a performance benefit from that difference.
Official specifications for the GWF-A1000XC-1A
- Size and weight: Casio’s international listing gives 56.7 × 51.7 × 19.7 mm and 140 g.
- Crystal: Sapphire crystal with anti-reflective coating.
- Resistance and power: Shock resistance, ISO 200-meter diving water resistance, and Tough Solar.
- Timekeeping and connectivity: Bluetooth smartphone link and radio-controlled Multi Band 6 time adjustment.
- App functions: Casio lists a diving log and tide-graph settings.
The ISO rating is Casio’s stated specification; it should not be read as a guarantee of safe depth, duration, or suitability for a particular dive.
Rank #2
- ISO 200 Meters Water Resistant
- Multi-Band 6 Atomic Timekeeping
- Bluetooth smartphone link
- Tough Solar Power
- Japan Imported/ Comes with Casio's one year international warranty if it is purchased from Shaun's Watch Store.
Why the official dimensions differ by market
Casio’s international page for the GWF-A1000XC-1A gives a width of 51.7 mm. The Japanese page for the GWF-A1000XC-1AJF instead lists 53.3 mm width. Both pages list 56.7 mm length, 19.7 mm thickness, and 140 g weight. The listings do not explain the width discrepancy, so use the measurement for the exact regional reference when checking fit.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Release and price context
Casio Japan lists the GWF-A1000XC-1AJF as released in May 2021, with a Japanese suggested retail price of ¥187,000 including tax. That is historical Japan launch pricing, not a current price or an estimate of what the watch sells for today. Casio marks the international GWF-A1000XC-1A page as an old model, but that label alone does not establish whether authorized or secondary-market sellers currently have stock.
Rank #3
![Casio G-Shock Digital Dial Resin Quartz Men's Watch [GWF-1000-1jf] (Japan Import-No Warranty)](https://m.media-amazon.com/images/I/41C6A+w1fhL._SL160_.jpg)
- Japanese model
- Japamese manual
- English PDF manual
Sources: Casio Japan GWF-A1000XC-1AJF and Casio international GWF-A1000XC-1A.
Quick Recap
Best Value
- Case size (L W H): 49.1 58.2 19.6 mm
- Case and bezel material: Resin
- Construction: Shock Resistant
- Weight: 74 g
- Water resistance: 200-meter water resistance
Rank #4
- 30th Anniversary Model / Love The Sea Earth
- Shock resistant
- Easy to see in darkness
- Stable solar power
- ISO 200 meter water resistant
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.
