Mechanical Precision Meets Sport Design
The BM3879 is built for those who appreciate both function and finesse. Its 42mm 316L stainless-steel case houses an automatic mechanical chronograph movement, visible through a sapphire exhibition back.
The chronograph layout features day, date, month, and 24-hour subdials, while the pulsation scale bezel adds a vintage medical chronometer touch — ideal for enthusiasts who appreciate watches that tell more than just time.
High-Grade Construction
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Sapphire Crystal (AR-coated): scratch-resistant clarity and durability.
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316L Stainless Steel Case: corrosion-resistant and finely brushed for depth.
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Exhibition Caseback: reveals the decorated movement, blued screws, and gold-tone rotor.
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Silicone Strap: soft yet rugged, blending casual wear comfort with sporty aesthetics.
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Water Resistant (50M): safe for handwashing, rain, or light swimming.
Key Specifications
| Feature | Details |
|---|---|
| Brand | BORMAN |
| Model | BM3879 |
| Movement | Automatic Mechanical (Visible through Caseback) |
| Case Material | 316L Stainless Steel |
| Crystal | Sapphire Glass (Flat, AR-Coated) |
| Case Diameter | 42 mm |
| Thickness | 11 mm |
| Band Material | Black Silicone Strap |
| Band Width | 20 mm |
| Clasp | Push-Button Hidden Clasp |
| Water Resistance | 50 M / 5 ATM |
| Weight | Medium |
| Warranty | 1 Year Official Warranty |
Functional Displays
| Function | Location |
|---|---|
| Auto Date | Window at 3 o’clock |
| Day of the Week | Left Subdial |
| Month Indicator | Top Subdial |
| 24-Hour Time | Bottom Subdial |
| Pulsometer | Outer Bezel Scale (30 Pulsations) |
Pulsation Scale Feature
A tribute to vintage doctor’s chronographs — the pulsation bezel measures heart rate manually:
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Start the chronograph at zero.
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Count 30 heartbeats.
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Read the Beats Per Minute (BPM) directly from the bezel scale.
Functional, stylish, and nostalgic — all in one dial.
Dial Variants Available
| Color Option | Description |
|---|---|
| Black / Gold Accents | Bold contrast with golden chronograph rings. |
| Black / Silver Accents | Sleek, monochrome, versatile styling. |
| Silver / Silver Tone | Polished elegance with full metallic look. |
What’s Included
1 × BORMAN BM3879 Chronograph Watch
Premium BORMAN Presentation Box
1-Year Warranty Card
1 × Free Bonus Gift (varies)
Frequently Asked Questions
Is this a quartz or automatic movement?
It’s a mechanical automatic chronograph, powered by wrist motion — no battery required.
What is the pulsation bezel used for?
It helps measure heart rate manually, based on 30 heartbeats.
Is the sapphire crystal scratch-proof?
Yes — it ranks 9 on the Mohs scale, providing exceptional durability.
Can I swim with this watch?
Yes, it’s water-resistant up to 50 meters, suitable for rain and brief swimming, but not diving.
Is the strap interchangeable?
Yes, the 20mm strap width supports most third-party silicone, leather, or steel bands.
Customer Reviews
★★★★★ – Jonathan F.
“Feels premium on the wrist. The pulsation ring is a brilliant touch — very distinctive design!”
★★★★★ – Liam C.
“The sapphire clarity and exhibition back make this a joy to wear. Perfect sporty-dress balance.”
★★★★☆ – Mark D.
“Love the black-and-gold combo. Comfortable strap and great wrist presence.”
★★★★★ – Chris B.
“An automatic chronograph under $500 that looks this good? Incredible value. Highly recommend.”
Related Products
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BORMAN BM3876 Multifunction Automatic Watch
Calendar, month, and 24-hour subdials in a refined 42mm case.
BORMAN BM3135 Dual Time Skeleton Watch
Exposed open-heart dial with dual time function and sapphire crystal.
San Martin SN0109 Root Beer GMT
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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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