Borealis Boavista 20mm Black vulcanized Rubber strap - Best Offer in Market for Diver Watches




We believe the Borealis Boavista tropic styled 20mm black rubber strap is the best on its class available in market for diver watches taking into account the quality/price ratio and majority of our customers agree with that.

It has an underside with a waffle pattern making it extremely comfortable even in hot summer days as it allows perspiration of skin.

This rubber strap is the result of over a year of work developing a new vulcanized rubber formula that brings what a rubber strap should be about: durable, flexible, vintage looking and affordable.

The Borealis Boavista tropic styled rubber strap in 20mm Black has a size of 131/78 mm, a diameter of 20mm tapering at 12mm at buckle and is made of vulcanized rubber. Its composition does not contain any kind of silicone just rubber though it is flexible as a silicone rubber without attracting dust.

Please be aware recommended maximum thickness of spring bars used is 1.8mm thick.



Free shipping for orders over $450.00 USD



Customer Reviews

Based on 11 reviews
Russ Tattersall
Best tropic strap under £50

I have the green and black boavista tropic straps and having never been a particular fan of a tropic ( I realise now because most are cheap nasty things look poor and perform badly) but having inherited a green Borealis boavista strap on a bought Seiko green Willard I am a convert. Love the soft pliable rubber and quality Matt sheen that gives this strap such a great look and feel. Liked it so much I bought the black one and it too does not disappoint. There are tropics out there at twice the price but I think you’d struggle to find anything that surpasses the quality, fit and feel of this Borealis tropic

Nick S.
Boa Tropic strap

This Borealis boa tropic 20mm is a super pliable and soft yet durable wearing dive strap!

Thanks Carlos and Maria

Richard Beecher
Tropic Strap

High quality strap. Ultra flexible yet strong. I only wish the adjustment holes for the tongue were closer together. I’ve had to create one of my own.

Poor service

Product is ok but has very straight ends by the lugs, with no roll-over of pattern. Wanted to return and was told it went against hygiene policy. When I mentioned they accept watch returns, which have (guess what?) straps, they went quiet .
Amateur night.

Thank you for sharing your feedback. We apologize for any inconvenience you experienced. We understand your concerns regarding the strap design and will pass your feedback to our product team. Regarding the return policy, while watches may come with straps, the hygiene concerns are more related to standalone straps that can be in closer contact with the skin. However, we value your input and will review our policies to ensure clarity and consistency. Please reach out to our customer service team, and we'll do our best to assist you further.

C McCrn
Great strap

Material lives up to the description, definitely rubber feel and very flexible. Pleasure to wear

Customer Reviews
5.0 Based on 5 Reviews
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Filter Reviews:
    Marc N.
    Australia Australia
    I recommend this product

    Quality strap

    Strap is very soft and perfect length, the buckle is good too. It has a lovely taper, it feels like a strap worthy of a quality watch. I also appreciate that it is NOT quick release. I would prefer it to be suitable for thick spring bars (I did manage to force fat ones in but it was a struggle), only other thing I would change is the squared off ends, I was hoping for angled or rounded ends where the strap meets the watch/lugs.

    Borealis Watch Company Borealis Boavista 20mm Black vulcanized Rubber - Best Offer in Market for Diver Watches Review
    Ivano D.
    Italy Italy
    I recommend this product


    Ottimo cinturino

    Borealis Watch Company Borealis Boavista 20mm Black vulcanized Rubber - Best Offer in Market for Diver Watches Review
    Edward H.
    United States United States
    I recommend this product

    Very pleased with new Bull Shark

    The watch is a real beauty. Keeps great time (currently less than 2 seconds a day variation)! I love the screw links in the bracelet and the fit and finish. Highly recommend Borealis watches.

    Malaysia Malaysia
    I recommend this product

    Superb comfort!

    Nicest rubber strap I ever purchased..Subtle rubber material which require no breakdown at all..Fast shipping to Malaysia and arrived earlier from the estimated ETA..Good job Team Borealis!

    Borealis Watch Company Borealis Boavista 20mm Black vulcanized Rubber - Best Offer in Market for Diver Watches ReviewBorealis Watch Company Borealis Boavista 20mm Black vulcanized Rubber - Best Offer in Market for Diver Watches Review
    Kai-Uwe N.
    Germany Germany
    I recommend this product

    Boreals Adraga

    What a nifty watch that is! I am still baffled how they could pull off 30ATM with the dimensions of the watch. With rougly 39.5mm x 11.5mm, it sits on my wrist very comfortably. The strap wears great as well, with a secure clasp. And I love the dial with the applied markers. I got the version with the salmon dial, I wasn't sure if I could pull it off, or if I could wear it to my usual attire. Which mostly is Jeans and T-Shirt, but often cargo trouser or cameo clothes as well. What can I say, it's totally fine. It just feels natural to wear that watch. And no one would expect it to be more waterproof than a G-Shock, for sure.