The Cronos BB39 is a compact, professional-grade automatic dive watch designed for enthusiasts who want classic proportions without sacrificing modern performance.
With a 39mm stainless steel case, sapphire crystal with AR coating, and a choice of NH35, PT5000, or SW200 automatic movements, the BB39 delivers serious tool-watch capability in a wearable, everyday format. Snowflake-style hands, strong lume, and a fully brushed bracelet complete a design that prioritizes function over flash.
This is a dive watch meant to be worn — not babied.
Key Specifications
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Case diameter: 39mm
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Lug-to-lug: 48.3mm
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Thickness: 11.1mm
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Lug width: 20mm
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Water resistance: 20 ATM / 200 meters
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Crystal: Sapphire with anti-reflective coating
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Case / bracelet: 316L stainless steel, fully brushed
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Weight: ~152g
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Warranty: 2 years
Movement Options Explained
Choose the movement that fits your priorities:
Seiko NH35 (Automatic)
Reliable, robust, and easy to service worldwide. Ideal for long-term daily wear.
PT5000 (High-Beat Automatic)
28,800 bph with a smoother seconds sweep and more refined feel. Popular with enthusiasts upgrading from NH35.
Sellita SW200 (Swiss Automatic)
Swiss-made alternative based on ETA architecture. Best for buyers who prefer Swiss pedigree.
All movements feature hacking seconds and hand-winding.
Dial & Lume Options
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Black / Blue dials: Enamel + sunray finish with applied indexes filled with BGW-9 blue lume
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Vintage Black dial: Enamel sunray finish with C3 green lume for a warmer, classic glow
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White dial: Semi-matte finish with applied silver indexes and BGW-9 blue lume
Snowflake-style hands ensure excellent legibility in all lighting conditions.
Case, Crown & Bracelet
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Screw-down crown with engraved Cronos logo
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Solid three-link bracelet with fully brushed finish
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Tapered design with deployant clasp for secure daily wear
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20mm lug width allows easy strap changes
Built for comfort, durability, and real-world use.
How It Wears
Thanks to its 39mm diameter and 11.1mm thickness, the Cronos BB39 wears exceptionally well on wrists from 16.5–19cm. It slips easily under cuffs while still feeling substantial — a rare balance in modern dive watches.
If you’re comparing similar PT5000-powered divers, see our in-depth Cronos vs San Martin comparison to understand how wearability, lume, and clasp design differ in real use.
Why Buy from Jewelry Addicts?
✔ Authentic Cronos models
✔ Verified specifications
✔ Enthusiast-focused descriptions
✔ Worldwide shipping
✔ Real customer support
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.
Customer Reviews
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Great watch
Very happy with this watch, and i wasn't sure at all from the photos. Much better in person, and very comfortable to wear.