Borealis Estoril 300 GMT Blue Turquoise Dial Arabic Numbers Date Version D





Introducing the Borealis Estoril 300 GMT: The Quintessence of Elegance and Precision for the Global Voyager

Immerse yourself in the refined craftsmanship of the Borealis Estoril 300 GMT, a distinctive piece from the prestigious microbrand Borealis Watch Company. Conceived with the perceptive world explorers and watch enthusiasts in mind, this elegant timepiece is furnished with the advanced Miyota 9075 True GMT movement, allowing effortless hour hand adjustment for impeccable tracking of multiple time zones.

The Estoril 300 GMT parades a captivating sapphire bezel, fortified with a bi-directional ball bearing mechanism, assuring smooth transitions across time zones with just a slight touch. This perfect marriage of elegance and functionality makes it the quintessential choice for intrepid globetrotters and astute professionals alike.

Navigate through dimly lit settings with the mighty BGW9 Superluminova, providing unparalleled visibility on all your expeditions. Achieving a remarkable balance between utility and sophistication, the Borealis Estoril 300 GMT establishes itself as the definitive microbrand timepiece for those who cherish both form and function.

Don't miss the chance to possess an extraordinary timepiece - the Borealis Estoril 300 GMT, your loyal ally in exploring new frontiers.

Watch Specifications:

  • Diameter: 41.50mm

  • Lug to Lug Length: 47mm

  • Thickness: 13.5mm (including domed sapphire crystal)

  • Case: 316L stainless steel with brushed and polished surfaces

  • Lug Width: 20mm

  • Movement: Miyota 9075 GMT

  • Water Resistance: 300m

  • Crystal: Domed Sapphire with inner AR coating

  • Bezel: Bi-directional with ball bearings, Sapphire Crystal

  • Lume: Superluminova BGW9

  • Bracelet: 316L stainless steel bracelet with screws and an updated quick-adjust clasp

Journey into the world of refined exploration with the Borealis Estoril 300 GMT - a symbol of the audacious spirit of the Borealis microbrand. More than a mere timepiece, it embodies your relentless passion for adventure.




Free shipping for orders over $450.00 USD



Customer Reviews

Based on 4 reviews
Lovely GMT adding a pop of summer colour to the collection

Lovely GMT - I saw the Gulf Racing colourway and had to add it to the collection! For the price - it’s a spec monster and good value. Miyota 9075, flyer GMT, 300m WR, very comfortable president bracelet and a terrific micro adjust clasp that I’d say is actually nicer than the Tudor t-fit system on my other watches. Lume is also one of the best I’ve seen.

What can Borealis improve? The photos on their marketing and website. Because the watches look much nicer than what the photos show. I’d love to see a purple bezel version, and also a black and white monochrome version.

James Luciani
Better than expected high quality GMT movement

Beautiful Dial and very good finish on case and bracelet. Very nice overall. Would purchase another version.


the bracelet is well made ... perhaps too well 🤔🤔🤔 ... given that it was impossible for me to remove the pins of the links to shorten it (I broke two extractors in vain) and also the slide link of the clasp cannot be lifted to let it slide. To my disappointment I will have to take it to my watchmaker to have it shortened. For the rest it is a good watch, even if at the time of purchase it was not sufficiently highlighted that what was paid at the time was only 50% of the cost of the watch and that the same would be paid before shipping. A kind of "false advertising" perhaps unintentional, of course I can't know, but this was certainly the effect at the time of my purchase since I hadn't noticed it.

Dear Antonio,

Thank you for taking the time to leave a review of the Borealis Estoril 300 GMT. We are pleased to hear that you appreciate the quality of the watch.

Regarding your concerns about the bracelet, we would like to emphasize that the Estoril 300 GMT features a bracelet designed with screws for durability and security. This design choice, while robust, does require a specific approach for adjustment. We apologize for any inconvenience this may have caused and are more than willing to provide assistance or guidance in this regard.

On the point of the payment process, we want to assure you and our future customers that the terms of the pre-order were presented in a clear and conspicuous manner on the product page. Our goal is to maintain transparency in all our customer transactions. We understand that misunderstandings can occur and we are committed to providing clarity and support throughout the purchasing process.

We value your feedback, as it is crucial in our journey to continuously improve our products and services. If you have any further queries or need assistance, our team is here to help.

Borealis Watch Company


Another great watch by Borealis. I own three now - and each one is better than the last. You cannot go wrong with an Estoril.