Product Description
Oupinke 3186 Open-Heart Automatic Watch — Two-Tone Tungsten Steel
A dressed-up automatic that shows off its mechanical side. The Oupinke 3186 puts an open-heart aperture right on the dial, so you can watch the balance wheel swing as the watch winds itself from your wrist — no battery needed. Around it sit calendar sub-dials and a day/month window, applied Roman numerals and crystal-set accents, all under a scratch-resistant sapphire crystal.
The case and bracelet are built from tungsten-steel and stainless steel — a hard, polished two-tone that resists scratches and keeps its shine. Flip it over and the exhibition caseback reveals the automatic movement (21 jewels, ~45-hour power reserve). Swiss-grade “high-gloss” luminous fills the hands and markers for a strong night-time glow.
The 40 mm case is 12 mm thick on a 20 mm bracelet with a butterfly clasp, and there’s a colour for every taste — silver/white, silver/black, blue, green, two-tone gold-tone, all-black or all-gold-tone. Choose the dial and finish that suits you.
Browse more from the brand on the Oupinke collection, compare the Oupinke 3268 skeleton automatic and the Oupinke tungsten-steel automatic, or start with our guide to the best Chinese automatic watches.
Highlights
- Open-heart automatic — see the balance wheel through the dial; no battery
- Two-tone tungsten-steel & stainless steel case and bracelet — hard and scratch-resistant
- Scratch-resistant sapphire crystal; exhibition caseback
- Calendar displays (day / date / month) with applied Roman numerals and crystal-set accents
- Strong luminous hands and markers
- 40 mm case, 12 mm thick; butterfly clasp
- Many finishes: silver, blue, green, two-tone gold-tone, black and gold-tone
Specifications
| Brand / model | Oupinke 3186 (G3186) |
| Movement | Automatic, self-winding, open-heart · 21 jewels · ~45 h power reserve |
| Crystal | Sapphire (synthetic sapphire, Mohs 9) |
| Case / bracelet | Tungsten-steel & stainless steel, polished two-tone |
| Diameter / thickness | 40 mm / 12 mm |
| Dial | Roman numerals; calendar displays; crystal-set accents; luminous hands/markers |
| Caseback | Exhibition (display) caseback |
| Bracelet | 20 mm; butterfly double-fold clasp |
| Water resistance | 50 m (5 ATM) — daily/splash only |
| Weight | ~158 g |
Wearing & care
Rated 50 m (5 ATM): fine for handwashing, rain and a quick rinse, but not for swimming, showering, hot water or the sauna — and never operate the crown in water. As an automatic it winds from wrist movement; if left off for a day or two it will stop, so give the crown a few turns and reset the time and calendar before wearing. Wipe with a soft cloth and keep away from strong magnets.
Frequently asked questions
Is this a tourbillon watch?
No. It’s an open-heart automatic — an aperture in the dial exposes the balance wheel so you can see it oscillate. That’s not a tourbillon, which is a rotating escapement cage. This watch does not have a tourbillon.
Is it automatic?
Yes — a self-winding mechanical movement (21 jewels, about 45 hours of power reserve), no battery. You can see it through the exhibition caseback.
Do the calendar dials adjust automatically?
No — the calendar displays are set by hand using the crown and side buttons. It’s a multi-calendar display, not a self-adjusting perpetual calendar.
Is the gold version real gold?
No — the gold and two-tone finishes are gold-tone plating over tungsten-steel and stainless steel, not solid gold.
Is the crystal sapphire?
Yes — a synthetic (lab-grown) sapphire crystal, which is standard for scratch resistance.
Can I swim with it?
No. It’s rated 50 m for splashes, rain and handwashing only — not for swimming, showering or diving.
Shipping & Delivery
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.
Refunds & 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 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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