CRW001G-9D

Regular price $299.00

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 moulding (MIM) to recreate fine details with precision in stainless steel. The ring is then finished with gold-coloured 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).

2 year warranty

Basic Information

  • Case and bezel material
    Stainless steel
  • Case size (L × W × H)
    25.2 × 19.5 × 6.2 mm
  • Power supply and battery life
    Approx. battery life: 2 years on SR621SW
  • Water resistance
    Water resistant
  • Weight
    16 g

Exterior

  • 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.
  • Glass
    Mineral Glass
  • Surface treatment
    Gold ion plated case

Features

  • Accuracy
    Accuracy: ±30 seconds per month
  • 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.
  • Calendar
    Auto-calendar (28 days for February)
  • Light
    LED backlight
  • Other features
    12/24-hour format
    Regular timekeeping:
    Digital: Hour, minute, second, pm, month, date, day
  • Stopwatch
    1/100-second stopwatch
    Measuring capacity: 00'00''00~59'59''99
  • World time
    Dual time

Gold-coloured full-metal design

Reproducing the Casio watch’s iconic form in a full-metal, ring-sized version required the use of metal injection moulding (MIM). This method of metal processing injects fine metal powders into moulds to craft the complex case shape and band holes with precision. Gold-coloured ion-plating adds a beautiful finish and delivers better abrasion resistance. Employing a case, case back, and ring moulded 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

Feature List

  • Minimalist black and white icon of a dual-time wristwatch with a main dial and a smaller sub-dial.

    Check dual city time at a glance

  • 5 stars: 6 (75%)
  • 4 stars: 2 (25%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
Stanley Yu
C
Carlo King
Bought myself a little time

Always like watches but have never been the kind to wear one.

Only comes in the one size but does come with some spacers if you want it on a smaller finger.

For me the size it comes was perfect for my pinky finger so maybe reconsider if you have hulk sized ands.

Love this little guy

B
Benji
Not a gimmick

I have purchased about 10 watches this year, two of the luxury Swiss bands and the one watch that has got the most attention and compliments was this cute little number. That said it accurate readable and perfect for a watch buying day.

A
Anthbear
It's super cute for a little finger watch, my

It's super cute for a little finger watch, my only disappointment is it's a bit too small, I can only fit it in my pinky finger.

A
Adam

Awesome! Real talking point

K
Karan

This is a unique piece. Must have for those who love wearing rings 👍🏻

A
Anonymous
Needs some larger sizing options

Needs some larger sizing options please

A
Ammar

Clean