| Movement | Quartz |
| Case material | Steel |
| Crystal material | Mineral |
| Weight | 16 g |
| Waterproof | Water resistant |
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Movement
Quartz
Case material
Steel
Crystal material
Mineral
Weight
16 g
Waterproof
Water resistant
A watch the size of a ring, a ring with a watch function—that’s exactly what the hot new Casio Ring Watch CRW-001JB-9ER J Balvin Collaboration is all about. A completely new style of digital watch—both practical and playful—made possible by a miniature module and advanced metalworking technology.
The Casio Ring Watch CRW-001JB-9ER was created in collaboration with the world-renowned Colombian musician J Balvin, who is one of today’s most successful Latin American artists. The design reflects Balvin’s signature style and preference for bold accessories. The brick-patterned dial creates a sense of depth, and tiny crystals add sparkle. The caseback features a flower motif, J Balvin’s signature. The ring comes in special packaging that repeats the brick pattern motif.
Creating an all-metal version of a Casio watch in the size of a ring with a complex shape is no easy task. To achieve this, Casio had to use a special metalworking method: injecting a mixture of fine metal powders and resin into a mold. Using metal injection molding (MIM), the case, back cover, and band are cast as a single piece. You’ll notice that the ring’s design faithfully reproduces the classic design found on the strap of Casio G-Shock watches. A special glass bonding technique ensures a durable seal for the watch, thereby achieving basic water resistance. The watch inside the ring, of course, allows for battery replacement.
The inner diameter of the ring is 20 mm and the circumference is 62.8 mm. The ring is therefore suitable for a finger size of 20.5 EU (22 JP, 10.5 US, U UK).
The package includes two spacers for size adjustment. Using these , the size can be adjusted to:
19.5 EU (19 JP, 9.5 US, T UK) (inner diameter 19 mm)
18.2 EU (16 JP, 8 US, Q UK) (inner diameter 18 mm).
The miniaturized watch module is powered by a small button cell battery and housed in a case that can be controlled using three buttons on the sides. The result is a digital watch that fits on your finger.
Even at this small size, the watch is equipped with a 7-segment LCD display that shows the time,date, day of the week, dual time, stopwatch,alarm, 12/24-hour format, and even features LED display backlighting. The watch’s calendar is automatic (February has 28 days), so you don’t have to worry about adjusting it over time.
It also includes a handy feature that lights up the display when the alarm is activated.
Colombian singer J Balvin is one of the most prominent figures on the contemporary global Latin American music scene. The winner of numerous music awards is known not only for his hits but also for his distinctive fashion sense and interest in design, which are reflected in this special edition.
Not sure about the size?
Print size patterns
(For printing set - Scale: Default)
| Brand | Casio |
| Gender | Male, Female, Unisex |
| Style | Sports, Casual |
| Origin | Japanese |
| Guarantee | 5 years |
| Waterproof | Water resistant |
| Weight | 16 g |
| Movement | Quartz |
| Caliber | 3573 |
| Movement accuracy in seconds | ±30 sec. / month |
Stopwatch measurement accuracy ![]() |
1/100 sec. |
| Case size | 25,2 × 19,5 mm |
| Case height | 6,2 mm |
| Case shape | Square |
| Case material | Steel with PVD treatment |
| Case color | Gold |
| Crystal material | Mineral |
| Dial | Digital |
| Dial color | Gold |
Transparent Case ![]() |
No |
| Strap material | Stainless steel with PVD treatment |
| Strap color | Gold |
Quick release system ![]() |
no |
Alarm clock ![]() |
Yes |
| Date | Yes |
| Backlight | Yes |
Stopwatch ![]() |
Yes |
Day of the week indicator ![]() |
Yes |
| Functions | Date, Day of the week, Stopwatch, Alarm clock, Automatic calendar |
| Battery | Yes |
| Other functions | Režim 12/24, Automatický kalendář, Hodinový sígnál, Stopky, Rozsvícení displeje při alarmu ad. |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 200 CZK on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
Ladies dress watch Ladies Steel Watches Men's dress watches Men's gold watches Men's steel watches Men's watches with stopwatch Women's gold watches Ladies Japan Watches Ladies sports watch Men's Japanese watch Men's Quartz watches Men's sports watches Men's watches under 200 EUR Men's watches with date Men’s Watches Casio Women's Quartz watches Women's watches under 200 EUR Men's watches Limited edition Men's watches under 400 EUR Men's watches with alarm Women's Limited edition watches Women's watches under 400 EUR Men's watches novelties Women's watches Casio Women's watches novelties Unisex Watches Classic Collection Classic Collection Classic Collection Women's watches with alarm Women's watches with date Women's watches with stopwatch Men's watches with steel bracelet Women's watches with steel bracelet Watch gift for men Watch gift for woman Men's watch with mineral glass Women's watch with mineral glass
Casio, Japan is one of the best-selling watch brands in the world. The first watches from the Casia workshop were digital and at the same time the first in the world to display the date. Casio's digital watches are no longer popular today, although analog watches or watches with a combined time display already form a large part of the range.
Casio has made history with its range of super-durable G-Shock watches, which are equipped with a light but sufficiently durable construction (against falls of up to 10 m, shocks, vibrations, magnetic field and temperature fluctuations) and a great value for money. The glory of the G-Shock watch over time also required a lightweight women's version - Baby-G. The Casio Pro Trek or Casio Edifice outdoor watches are also very popular. Casio does not lag behind in modern technology either, as evidenced by models equipped with Bluetooth technology, the Tough Solar solar drive or the high-precision radio-controlled Wave Ceptor watch.
Helveti.eu is an authorized dealer and specialist of the Casio brand.
Manufacturer information: CASIO Europe GmbH, Casio-Platz 1 D-22848 Norderstedt, Germany / info@casio.de
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1 → We check, clean and set
We will check the functionality, set time, date and clean the watch carefully.
2 → We will carefully pack the watch
So that the watch does not have a chance to be damaged. We use special vacuum pads.
3 → We insure the watch against damage from the carrier
To be sure, we will insure the watch against breakage, so there is nothing to fear.
With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here: