*The color tone of the listed products may differ from the actual product in some cases.
CRW-001G-9
NEW
10/2025
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Wristwatch form and function, in the size of a finger-ring -
Gold-colored full-metal design -
Miniature module making it all possible -
Pulsing light speaks to the twinkling of time -
Special packaging -
The ring fits a size 22 finger (US 10.5, EU U). Two size-adjusting spacers for sizes 19 and 16 are also included. -
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A digital wristwatch for your finger — practical and playful. Compact design, sophisticated look, and a touch of pure fun. Creating a ring-sized version of the Casio watch’s complex form and functions was no easy feat. To make this possible, we needed to use advanced metal injection molding (MIM) to recreate fine details with precision in stainless steel. The ring is then finished with gold-colored ion-plating for a polished gleam. The monocoque case and special glass adhesive technique ensure a tight seal for everyday water resistance, while still allowing the battery to be replaced. We downsized the standard watch module by a factor of 10 and paired it with a small button battery to create a fully functional 3-button digital watch that actually fits right on your finger. Even at this small size, the watch features a 7-segment LCD that shows all the info you need — hours, minutes, and seconds, as well as date, dual time, and stopwatch. A soft, flashing light activates at your chosen time, offering a subtle and emotive glow. The ring fits a size 22 finger (US 10.5, EU U) and comes with two size-adjusting spacers, in size 19 (19-mm inner diameter) and size 16 (18-mm inner diameter).
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Wristwatch form and function, in the size of a finger-ring
-
Gold-colored full-metal design
-
Miniature module making it all possible
-
Pulsing light speaks to the twinkling of time
-
Special packaging
-
The ring fits a size 22 finger (US 10.5, EU U). Two size-adjusting spacers for sizes 19 and 16 are also included.
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Major Features
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Check dual city time at a glance
Specifications
SIZE
| CASIO RING WATCH CRW-001 | Inner diameter | Ring circumference | Front width |
| US 10.5、EU U JP size 22 |
Approx. 62.8 mm | Approx. 20 mm | Approx. 19.5 mm |
| Size-adjusting spacers | Ring circumference | Inner diameter |
| JP size 19 | Approx. 59.7 mm | Approx. 19 mm |
| JP size 16 | Approx. 56.6 mm | Approx. 18 mm |
*Size adjustment is not available.
Gold-colored full-metal design
Reproducing the Casio watch’s iconic form in a full-metal, ring-sized version required the use of metal injection molding (MIM). This method of metal processing injects fine metal powders into molds to craft the complex case shape and band holes with precision. Gold-colored ion-plating adds a beautiful finish and delivers better abrasion resistance. Employing a case, case back, and ring molded in a single piece and special glass adhesive technique, the watch is built to be water-resistant for daily use, while still allowing the battery to be replaced.
Miniature module making it all possible
The standard watch module has been downsized to approximately one-tenth its original size using high-density mounting technology and a miniature battery, creating a 3-button digital watch that fits on your finger. The 6-digit LCD not only displays the time down to the second, but also features calendar, dual time, and stopwatch functionality.
Pulsing light speaks to the twinkling of time
At any preset time of your choice, the ring watch will give off a subtle, pulsing glow, an emotional nod to the fleeting twinkle of time.
Special packaging
The ring-sized watch comes in a special box with a dedicated pouch and a silicone stand that can be used to display the watch.
Ring size
The ring fits a size 22 finger (US 10.5, EU U). Two size-adjusting spacers for sizes 19 and 16 are also included.
• Size：Size 22 (US 10.5, EU U)
• Circumference：Approx. 62.8 mm
• Inner diameter：Approx. 20.0 mm
• Width：Approx. 19.5 mm
Size-adjusting spacers
• Size：Size 19 equivalent
• Circumference：Approx. 59.7 mm
• Inner diameter：Approx. 19.0 mm
• Size：Size 16 equivalent
• Circumference：Approx. 56.6 mm
• Inner diameter：Approx. 18.0 mm
