Cadisen C8218 200m Automatic Watch — NH35A, 40mm, Steel Bezel, AR Sapphire, C3 Lume
The Cadisen C8218 is a 40mm NH35A automatic dive watch — 200m water resistance, unidirectional rotating steel bezel, anti-reflective sapphire crystal, screw-down crown, C3 luminous markers and hands, 316L stainless steel case and bracelet, 13mm thickness, 48mm lug-to-lug, 162g. Upgraded from the C8209M. 2-year warranty, 30-day return policy.
Key Specifications
| Specification | Detail |
|---|---|
| Model | C8218 |
| Movement | Seiko NH35A automatic |
| Hacking | Yes |
| Hand-winding | Yes |
| Power reserve | ~42 hours |
| Case diameter | 40mm |
| Case thickness | 13mm |
| Lug to lug | 48mm |
| Lug width | 20mm |
| Case material | 316L stainless steel |
| Bezel | Unidirectional rotating steel |
| Crystal | Sapphire with anti-reflective coating |
| Crown | Screw-down |
| Lume | C3 on markers and hands |
| Water resistance | 200m |
| Bracelet | 316L stainless steel, wire-draw finish |
| Weight | 162g |
| Warranty | 2 years |
| Returns | 30-day no-questions-asked |
Dial
Blue sunray brushed dial — the sunray finish creates directional light reflection that changes tone between different viewing angles. The C3 luminous markers and hands provide green-glow readability in darkness.
NH35A Movement
The Seiko NH35A is Seiko’s core production automatic caliber — hacking, hand-winding, date display at 3 o’clock, approximately 42-hour power reserve. For buyers who wear the watch fewer than 10 hours per day, manual winding via the crown (approximately 20 full rotations) maintains the power reserve. The NH35A is the most widely serviced automatic movement available globally.
Anti-Reflective Sapphire Crystal
The C8218 uses sapphire with an anti-reflective coating on the inner surface — the AR coating reduces glare from light sources behind and above the wearer, improving dial legibility in mixed-light conditions. Standard sapphire without AR coating reflects internal light sources; the coated version reduces this.
Unidirectional Steel Bezel
The bezel rotates counterclockwise only — the standard safety feature on dive watch bezels. Accidental rotation can only reduce the displayed elapsed time, never increase it, which is conservative for timing purposes. The bezel is steel rather than ceramic — appropriate for a dive watch at this price point.
Water Resistance — Accurate Expectations
200m (20ATM) is genuine dive-capable water resistance. The listing notes to secure the crown before water contact and advises against hot showers — water vapour and thermal cycling can stress the gasket seals over time regardless of the depth rating. This is standard care advice for any water-resistant watch: rinse with fresh water after salt water exposure, have seals checked annually if used for regular diving.
C8218 vs Seestern Sub 600T V3 — Two 40mm NH35 200m Divers
Both are 40mm NH35A automatic dive watches at comparable prices. Key differences:
| Feature | C8218 (this page) | Seestern Sub 600T V3 |
|---|---|---|
| Price | $176.99 | $276.99 |
| Bezel | Steel (unidirectional) | Steel or ceramic options |
| Lume | C3 green | BGW9 blue-white |
| Date wheel lume | Not stated | Yes — luminous date wheel |
| Weight | 162g | 175g |
| Colour variants | 1 (grey/blue sunray) | 12 |
| Warranty | 2 years | — |
Choose C8218 for the lower price, AR sapphire coating and the 2-year warranty. Choose Seestern Sub 600T V3 for BGW9 lume, ceramic bezel options, luminous date wheel and wider colour selection.
Who Is the Cadisen C8218 For?
- Entry-point 200m NH35A buyers who want AR sapphire and screw-down crown at under $200
- C3 lume buyers who prefer the green glow over BGW9 blue-white
- Single-variant buyers who want a clean blue sunray dial without choosing between colour options
- 2-year warranty buyers — the Cadisen warranty is the strongest stated coverage in the 40mm NH35 dive category at Jewelry Addicts
More from Jewelry Addicts
- Seestern Sub 600T V3 — BGW9, ceramic bezel, 12 colours at $276.99
- Seestern S435 200m — larger 43mm NH35 alternative
- BERNY AM134MR PT5000 200m — PT5000 high-beat alternative
- Cadisen Watches — full Cadisen range
A real-life photo of the watch If you’d like to see more pictures, you can contact our customer service at the shop, and we will provide you with additional real-life photos of the watch.
200M Diving watch
Ready for Diving This watch is technically advanced with improved ergonomics and features a unidirectional ceramic bezel with a dive scale that perfectly complements the dial and octagonal indexes.
Japan Seiko NH35A movement
Stable Mechanical Properties The SEIKO NH35A movement features 24 jewels, a 21,600vph (3Hz) frequency, and 40 hours of dynamic power reserve with a stop-second device, with an accuracy of ±10 seconds per day. Although the accuracy may be slightly off, its durability is exceptional. This movement is widely used in diving watches.
Super C3 Luminous
Unique Design The imported C3 green luminous feature makes it easier to read the time in the dark, while also adding a touch of beauty to the watch’s design.
Convenient watch buckle
Unwavering Performance Built for extreme conditions, this watch features a tapered steel bracelet secured with safety push buttons on the buckle and a fine-tuning system, making it a heavy-duty tool for sea-related activities.
Please take a look at the following images for a closer look at this watch. If you would like to see more pictures, you can contact our shop’s customer service, and they will provide additional real-life photos of the watch.
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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