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.
- Case size (L× W× H): 25.2 × 19.5 × 6.2 mm;
- Weight: 16 g;
- Case and bezel material: Stainless steel;
- Water resistance: Water Resistant;
- Power supply and battery life: Approx. battery life: 2 years on SR621SW;
- Glass: Mineral Glass;
- Surface treatment: Gold ion plated case;
- Compatible band size: The ring has an inner diameter of 20 mm and a circumference of 62.8 mm, fitting a size 22 finger (US 10.5, EU U). Two size-adjusting spacers in size 19 (19-mm inner diameter) and 16 (18-mm inner diameter) are included;
- World time: Dual time;
- Stopwatch: 1/100-second stopwatch, Measuring capacity: 00'00''00~59'59''99;
- Alarm/hourly time signal: Time flash (daily and every hour on the hour) - *The Time Flash light may not be visible when ambient lighting is bright. *Time Flash is intended for entertainment purposes.;
- Light: LED backlight - May not be visible in bright light, Light color: LED: White;
- Calendar: Auto-calendar (28 days for February);
- Accuracy: Accuracy: ±30 seconds per month;
- Other features: 12/24-hour format, Regular timekeeping: Digital: Hour, minute, second, pm, month, date, day.
| Brand | CASIO |
|---|---|
| Features | Check dual city time at a glance |
| Collection | Vintage & Retro |
| Type | Digital |
| Color | Gold |
| Product Launch Date | Oct 2025 |
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.
- Case size (L× W× H): 25.2 × 19.5 × 6.2 mm;
- Weight: 16 g;
- Case and bezel material: Stainless steel;
- Water resistance: Water Resistant;
- Power supply and battery life: Approx. battery life: 2 years on SR621SW;
- Glass: Mineral Glass;
- Surface treatment: Gold ion plated case;
- Compatible band size: The ring has an inner diameter of 20 mm and a circumference of 62.8 mm, fitting a size 22 finger (US 10.5, EU U). Two size-adjusting spacers in size 19 (19-mm inner diameter) and 16 (18-mm inner diameter) are included;
- World time: Dual time;
- Stopwatch: 1/100-second stopwatch, Measuring capacity: 00'00''00~59'59''99;
- Alarm/hourly time signal: Time flash (daily and every hour on the hour) - *The Time Flash light may not be visible when ambient lighting is bright. *Time Flash is intended for entertainment purposes.;
- Light: LED backlight - May not be visible in bright light, Light color: LED: White;
- Calendar: Auto-calendar (28 days for February);
- Accuracy: Accuracy: ±30 seconds per month;
- Other features: 12/24-hour format, Regular timekeeping: Digital: Hour, minute, second, pm, month, date, day.
| Brand | CASIO |
|---|---|
| Features | Check dual city time at a glance |
| Collection | Vintage & Retro |
| Type | Digital |
| Color | Gold |
| Product Launch Date | Oct 2025 |
