Casio G-Shock Watch Ring CRW-001G-9ER

A finger watch. A surprising idea that combines practicality, compact design, and a touch of pure fun. This digital ring-watch reinterprets the iconic Casio style in a miniaturized and fully functional version.

Creating a ring with the shape and functions of a real digital watch was not easy: sophisticated MIM (Metal Injection Molding) technology was used to faithfully reproduce every detail in stainless steel. The structure is then finished with a gold ion plating that gives it brilliance and a refined look.

The monocoque case, together with the special glass bonding technique, ensures a perfect seal for daily water resistance, while still allowing for battery replacement. The module of a classic digital watch has been reduced 10-fold and paired with a micro button battery, creating a fully operational 3-button digital watch… but in ring format.

Basic Information
Case size (H × W × D): 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
Approximate battery life: 2 years on SR621SW

Exterior
Glass: Mineral
Surface treatment: Gold ion-plated case
Strap / Ring size: 20 mm inner diameter, 62.8 mm circumference (size 22 – US 10.5, EU U). Includes two spacers for adjustment: size 19 (19 mm inner diameter) and size 16 (18 mm inner diameter).

Watch features
World time: Dual time
Stopwatch: 1/100-second
Measuring capacity: 00 (00) 00 – 59 59 99
Alarm / Hourly time signal: Daily alarm, hourly time signal
The Time Flash light may not be visible in very bright environments and is intended for entertainment purposes.

Light
Backlight: LED
May be difficult to see in direct sunlight.
Light colour: White LED

Calendar
Type: Automatic (28 days for February)

Accuracy
Accuracy: ±30 seconds per month

Other features
Regular timekeeping: Hour, minute, second, PM, month, date, day of the week