The OUPINKE Twelve Knights Series is a 41mm automatic dress watch built around a guilloché-pattern dial with sword-shaped gold-tone hour markers — a design theme drawn from Arthurian legend. Proprietary automatic movement, 21 jewels, 21,600 vph, 45-hour power reserve. Curved sapphire crystal. Tungsten and stainless steel bracelet with pyramid-link centre section and butterfly double clasp. Day-date window at 3 o’clock. Swiss luminous. 10.5mm thick (without crystal), 136g, 50M water resistance. 5 dial variants.
| Specification | Details |
|---|---|
| Series | Twelve Knights Series |
| Case diameter | 41mm |
| Case thickness | 10.5mm (without crystal) |
| Case material | Stainless steel |
| Crystal | Curved sapphire, Mohs 9 |
| Movement | Proprietary automatic, 21 jewels |
| Frequency | 21,600 vph |
| Power reserve | ~45 hours |
| Functions | Hours, minutes, seconds, day, date |
| Dial | Guilloché centre, sword-shaped hour markers |
| Luminous | Swiss luminous powder — hands and indices |
| Water resistance | 50M / 5ATM |
| Bracelet | Tungsten and stainless steel, pyramid-link |
| Bracelet width | 20mm |
| Bracelet circumference | 20cm |
| Clasp | Butterfly double clasp |
| Weight | 136g |
| Variants | Gold, gold/white, grey, blue, black |
The 3172 Twelve Knights uses a curved (domed) sapphire crystal rather than the flat sapphire found on most OUPINKE models. A curved sapphire is more complex and expensive to produce than flat sapphire — the dome profile sits higher over the dial, creating visible depth between the crystal surface and the dial face below. This adds a three-dimensional quality to the dial view and gives the watch a slightly more classical profile from the side. Mohs 9 hardness — scratch-resistant under normal daily wear.
The dial centre uses a CD-style radial guilloché pattern — concentric wave engraving that scatters and refracts light differently at different angles. The pattern is most visible under natural or directional light, where the concentric lines create a moving, layered depth effect. In flat diffuse light the dial reads as a clean, textured surface.
The twelve hour markers are sword-shaped applied gold-tone elements — three-dimensional raised markers with a blade profile, referencing the twelve knights of the Round Table. The design gives the dial a distinct character from standard baton, Roman numeral, or diamond index formats. The OUPINKE wing logo sits at 12 o’clock; “Automatic” is printed in italic script below centre.
The day and date display sits at 3 o’clock in a dual-window format, showing the abbreviated day name alongside the date number. This is the same day-date function found on the Geyashi Series models. The display is framed and sits cleanly within the dial layout without disrupting the guilloché pattern or marker geometry.
Proprietary OUPINKE automatic movement, 21 synthetic ruby jewels, 21,600 vph. Power reserve approximately 45 hours from full wind. Self-winding bidirectional rotor; manual winding via the crown. If the watch has been unworn for more than 45 hours, wind manually before wearing to restore accurate timekeeping immediately. No battery required.
Pyramid-link tungsten carbide and stainless steel bracelet — the distinctive OUPINKE link format with raised diamond-cut pyramid faces across the centre links. On the two-tone variants the centre links carry gold-tone accents. Butterfly double clasp with push-button release. Bracelet circumference 20cm; link removal via standard pin tool. Weight 136g — the lightest of the OUPINKE dress watches, 1mm slimmer case thickness than the 3171 and 3169.
Gold — full gold-tone case, bezel, and bracelet. The most formal and visually assertive variant.
Gold/white — gold-tone bezel and bracelet accents with a white guilloché dial. High contrast and the most legible in direct light.
Grey — cool grey dial with two-tone silver and gold bracelet. Understated and versatile.
Blue — deep blue guilloché. The most popular colour in the Twelve Knights range; strong contrast with the gold sword markers.
Black — deep black dial with gold sword markers and two-tone bracelet. The most dramatic contrast combination.
The Twelve Knights Series sits alongside the Geyashi Series (3171, 3169, 3200) as OUPINKE’s closed-dial dress offerings, with two points of distinction: the curved sapphire crystal and the sword-shaped hour markers. The curved crystal is unique to this series in the OUPINKE range. The 3169 shares a guilloché dial but with crystal-set flower indices and flat sapphire. The 3171 uses a sunburst dial with diamond indices.
For the full OUPINKE range, see the OUPINKE watches collection. For skeleton models, see the OUPINKE 3168 and OUPINKE 3179.
What makes the Twelve Knights different from other OUPINKE dress watches? Two things: the curved (domed) sapphire crystal, which adds depth and a classical profile unique to this series, and the sword-shaped applied hour markers — a specific design element not used on other OUPINKE models.
What movement does the Twelve Knights use? A proprietary OUPINKE automatic movement — 21 jewels, 21,600 vph, approximately 45-hour power reserve. Self-winding and manual winding via the crown.
Is the crystal curved or flat sapphire? Curved sapphire — domed profile that sits higher over the dial than a flat crystal. More expensive to produce than flat sapphire; adds visible depth to the dial view.
Does the watch have day and date? Yes — dual day-date window at 3 o’clock showing the abbreviated day name and the date number simultaneously.
Is it waterproof for swimming? Yes — 50M / 5ATM, suitable for handwashing, rain, cold bathing, and swimming. Not suitable for warm or hot water, steam, snorkelling, or diving.
How heavy is the watch? 136g including the tungsten and stainless steel bracelet — the lightest closed-dial OUPINKE dress model in this range.

OUPINKE 3172 STYLE
Please note: we can lengthen the watch strap for free (if your wrist is greater than 22cm), please contact us [email protected].
1. The whole body is made of tungsten steel, which is wear-resistant, scratch resistant and does not fade
2. High strength sapphire mirror, high-definition dial, not easy to wear
3. The movement is made with top technology, and the kinetic energy reserve can reach 72 hours
4. 50m deep waterproof, no need to take it off for swimming
5. Special counter leather gift box packaging, original leather strap gift

















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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.
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.
| 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 |
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.
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.
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.
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.
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
We do not issue the refund if:
*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.
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.
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.
Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:
We do not issue the refund if:
*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.
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.
Its gorgeous and packaging was beautiful. Great gift !
The delivery is fast, the watch is very accurate, its packaging is very beautiful, the watch box is very high, and the watch strap is a leather strap. The length of the watch strap is about 22CM, but the store said it can be extended free of charge.