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Official UK Authorised Retailer
Extra 1-Year Warranty Free
Free Delivery
30 Day Returns
Customer Service & Technical Support
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Orient Mako Kamasu Blue Dial Stainless Steel Strap Men's Dive Watch RA-AA0812L39B
The Orient RA-AA0812L39B is a robust mechanical sports watch, expertly crafted for enthusiasts of outdoor adventures and active lifestyles, yet versatile enough for everyday casual wear. Its distinctive design is highlighted by a unique bi-colour rotating bezel, where two different hues elegantly separate at the triangular and 15-minute markers on the aluminium plate. Further enhancing its appeal are Orient's signature colour gradation dials and hands, coupled with dot indices featuring a sepia-toned luminescent material, collectively creating an appealing vintage aesthetic. This timepiece is powered by a reliable mechanical, automatic self-winding movement, boasting 22 jewels and a vibration rate of 21,600 vibrations per hour. It offers the convenience of both hand-winding and a second hand halt mechanism, along with practical day and date displays. Encased in durable stainless steel and protected by scratch-resistant sapphire crystal, the watch is engineered with a screw caseback and screw crown, providing an impressive water resistance of 20 bar (200 metres), making it a dependable companion for various activities.
Key Features:
- Distinctive bi-colour rotating bezel for unique styling.
- Signature colour gradation dials with vintage-effect luminescence.
- Robust 200-metre water resistance for sports and outdoor use.
- Scratch-resistant sapphire crystal for enhanced durability.
- Reliable mechanical, automatic self-winding movement with day and date display.
Who is it For?
The Orient RA-AA0812L39B is an excellent choice for individuals who lead an active lifestyle, engaging in sports or outdoor pursuits, and require a durable yet stylish timepiece. It also appeals to those with an appreciation for fashionable designs and a vintage aesthetic, suitable for casual wear and making a statement around town.
Why buy from us:
- Official Partner: You can be confident that your watch is 100% authentic and has not been tampered with. As a Orient authorised dealer we sell genuine products sourced directly from the brand.
- 2-Year Warranty: Your Orient watch comes with a official 1-year manufacturer warranty, ensuring repairs and replacements are covered according to the brand’s policy. Plus, at WatchNation we’re offering an additional 1 year warranty on top! Grey market sellers often offer limited, seller or third-party warranties that may not provide the same level of protection.
- Expert Service and Support: As an authorised dealer we have access to brand training and resources, allowing our staff to provide knowledgeable advice and proper after-sales service.
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UK Delivery
| Selling Price | Royal Mail 48 (Tracked) |
Royal Mail 24 (Tracked & Signed) |
Special Delivery Next Day (Mon – Fri) |
Special Sunday Delivery (Before Sat 12pm) |
Royal Mail Special Delivery by 1pm |
|---|---|---|---|---|---|
| £0 to £99.99 | FREE | £4.99 | £7.99 | £7.99 | £9.99 |
| £100 to £499.99 | N/A | FREE | £7.99 | £7.99 | £9.99 |
| £500 or more | N/A | N/A | FREE | £7.99 | £9.99 |
We know your order is important to you, so we use Royal Mail’s tracked delivery service on all UK orders.
We also offer Royal Mail Special Delivery service, which for an additional fee offers guaranteed delivery the next day before 1pm.
*Royal Mail Tracked 24 and Royal Mail Tracked 48 services are 98% accurate but not guaranteed.
Orders placed before 5pm (Monday–Friday) are dispatched the same day. Orders placed on Saturday or Sunday are dispatched the following Monday.
International Delivery
We are pleased to offer worldwide shipping. For accurate shipping rates, please add the item to your basket. Once you enter your shipping address, you will be offered all available options.
For the EU, EEA, and the rest of the world, the total price shown at checkout includes only the outbound Royal Mail / DHL shipping cost. You will be contacted by Royal Mail / DHL regarding duties and taxes. If you refuse the parcel and do not pay the required customs or duties, the outbound shipping cost will be deducted from your refund.
On average, delivery to the EU takes 3–5 working days, and delivery to the rest of the world takes 5–7 working days.
More about delivery...

Need help?
Frequently Asked Questions
Yes — we are an Authorised Dealer for every brand we sell. All watches come with an official box, papers, and a full manufacturer’s warranty.
Every watch includes a manufacturer warranty. You’ll find more warranty info listed in the product description.
Orders placed before 5pm (Mon–Fri) are dispatched the same day. Order before 12pm on Sat for same-day dispatch. Free UK delivery is available on all orders, and tracking details are provided once shipped.
Yes — you have 30 days from delivery to return or exchange your item, provided it’s unused and in its original packaging.




