CILOA 551 Rectangle Quartz Watch – Hidden Number Window, Brushed Steel Bracelet
The CILOA 551 is a rectangular quartz watch with a closed-face design — a brushed stainless steel case front with no traditional dial, and a small rotating number window on the right side of the case displaying the time digitally through a mechanical-style aperture. Stainless steel flat-link bracelet with push-button hidden clasp. Japanese quartz movement. Hardlex reinforced glass. 10mm slim, 18cm bracelet length, shock resistant, 3ATM water resistance. Silver only.
Key Specifications
| Specification | Details |
|---|---|
| Brand | CILOA |
| Model | 551 |
| Movement | Japanese quartz |
| Case material | Stainless steel |
| Case shape | Rectangle |
| Case diameter | 30–34mm |
| Case thickness | 10mm |
| Crystal | Hardlex reinforced mineral glass |
| Display type | Hidden number window (rotating aperture) |
| Bracelet material | Stainless steel |
| Bracelet width | 20–24mm |
| Bracelet length | 18cm |
| Clasp | Push-button hidden clasp |
| Water resistance | 3ATM / 30M |
| Features | Shock resistant |
| Packaging | Leather box |
| Colour | Silver |
Hidden Number Window Display
The 551 does not have a conventional open dial with hands. Instead, the front face is a closed brushed metal panel — flat and minimal — with a small aperture window on the right side of the case. This window shows rotating number discs displaying the time in a digital-style readout driven by the quartz movement. The overall effect is a watch that reads as a plain brushed metal rectangle from a distance but reveals its time display when viewed at close range.
This display format is associated with vintage Japanese and European mystery/jump-hour watch designs from the 1970s — the 551 revives that aesthetic in a modern stainless steel package. It is not a digital watch in the electronic sense; the number display is mechanical, driven by the quartz movement through rotating disc wheels.
Case and Bracelet
Brushed stainless steel throughout — case and bracelet share the same surface finish. The bracelet uses wide flat links with a consistent brushed texture, giving a uniform profile from case to clasp. The push-button hidden clasp sits flush under the bracelet and opens via two symmetrical pressure points — no visible buckle on the outer face.
At 18cm maximum bracelet length, the 551 suits smaller to average wrist sizes. The compact 30–34mm case diameter and flat link profile keep the watch low-profile on the wrist.
Japanese Quartz Movement
Japanese quartz, battery included, accurate to approximately ±15 seconds per month. Shock resistant. No winding or maintenance required beyond battery replacement approximately every 1–2 years.
3ATM Water Resistance
30M / 3ATM — splash and handwashing protection only. Not suitable for swimming, showering, hot water, or steam. The push-button hidden clasp should remain closed during any water contact.
How the 551 Compares to Other CILOA Models
The 551 is the most distinctive model in the CILOA range on this site — the hidden number window format makes it unlike anything else in the line-up. The 532, 533, and 526 all use traditional hand displays. The 551 appeals to buyers who specifically want the mystery display aesthetic or who want a watch that doesn’t look like a conventional watch at casual glance.
- For a square minimal dial: CILOA 533
- For a square vintage Roman numeral dial: CILOA 532
- For a compact oval vintage dial: CILOA 526
- For all men’s watches: Watches for Men
FAQ
How do you read the time on the 551? A small aperture window on the right side of the case shows rotating number discs driven by the quartz movement — the time is displayed as digits through this window rather than by hands over a dial. Pull the watch close to eye level to read the numbers clearly.
Is the display electronic or mechanical? The number display is mechanical — rotating discs driven by the quartz movement, not an LCD or electronic panel. The quartz movement provides the timekeeping; the discs rotate mechanically to show the time.
Is the bracelet stainless steel? Yes — stainless steel flat-link bracelet. Same brushed finish as the case.
What wrist size does it fit? 18cm maximum bracelet length — suits smaller to average wrist sizes. Larger wrists may find this bracelet too short.
Is the crystal sapphire? No — Hardlex reinforced mineral glass.
Is it waterproof for swimming? No — 3ATM / 30M is splash and handwashing protection only.
What does the packaging include? The 551 ships in a leather box — an upgrade from the paper box on the 532 and 533 models.
SHIPPING
We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.
Do you ship worldwide?
Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.
What about customs?
We are not responsible for any custom fees once the items have been shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.
How long does shipping take?
Shipping time varies by location. These are our estimates:| Location | *Estimated Shipping Time |
|---|---|
| United States | 5-20 Business days |
| Canada, Europe | 5-20 Business days |
| Australia, New Zealand | 5-20 Business days |
| Central & South America | 5-25 Business days |
| Asia | 5-20 Business days |
| Africa | 5-25 Business days |
Do you provide tracking information?
Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.
My tracking says “no information available at the moment”.
For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.
Will my items be sent in one package?
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
If you have any other questions, please contact us and we will do our best to help you out.
RETURNS
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- If you did not receive the product within the guaranteed time (45 days not including 1-3 day processing) you can request a refund or a reshipment.
- If you received the wrong item you can request a refund or a reshipment.
- If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
We do not issue the refund if:
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of jwlraddicts.com (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of jwlraddicts.com.
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing, you must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
Order cancellation
All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.
Refunds
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
- If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
- If you received the wrong item you can request a refund or a reshipment.
- If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.
We do not issue the refund if:
- Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
- Your order did not arrive due to exceptional circumstances outside the control of jwlraddicts.com (i.e. not cleared by customs, delayed by a natural disaster).
- Other exceptional circumstances outside the control of //jwlraddicts.com
*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page
If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.
Exchanges
If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.
Please do not send your purchase back to us unless we authorise you to do so.
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