Specifications
Basic Information
Case size (L × W × H)
25.2 × 18.2 × 6.2 mm
Weight
15 g
Case and bezel material
Stainless steel
Water resistance
Water Resistant
Power supply and battery life
Approx. battery life: 2 years on SR621SW
Exterior
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.
Watch Features
World time
Dual time
Stopwatch
1/100-second stopwatch
Measuring capacity: 00'00''00~59'59''99
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.
* 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.
May not be visible in bright light.
Light color
LED: White
Calendar
Auto-calendar (28 days for February)
Accuracy
±30 seconds per month
Other features
12/24-hour format
Regular timekeeping:
Digital: Hour, minute, second, pm, month, date, day
Regular timekeeping:
Digital: Hour, minute, second, pm, month, date, day
Features
Faithful miniature of the A168 design
Every detail of the A168 — a 30-year long-selling Casio — is recreated at ring scale, from the feature indicators on the face to the design and finish of the band. The matte band and glossy case create a textural contrast.
* Image shows the CRW-002 series.
* Image shows the CRW-002 series.
Miniature module making it all possible
The standard watch module is downsized to one-tenth its original size. A seven-segment LCD shows hours, minutes and seconds, plus auto calendar, 12/24-hour format, a stopwatch and more.
* Image shows the CRW-002 series.
* Image shows the CRW-002 series.
Fits a size 22 finger, with two spacers included
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 for sizes 19 and 16 are included in the box.
Special packaging
The ring watch arrives in dedicated packaging designed for the CASIO RING WATCH, with a presentation box and a pouch.