Hydrium® Revuelta Amarillo


Tax included only within the UK
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Introducing the Hydrium Amarillo and Hydrium Azul: A Collaboration between Luis Revuelta and Isotope

We are excited to present the remarkable Hydrium Amarillo (yellow) and Hydrium Azul (blue) watches, born from the collaboration of acclaimed architect Luis Revuelta, AIA 2007 Architect of the Year, and Isotope Watches. These timepieces embody the perfect fusion of architectural brilliance and horological excellence.

Luis Revuelta, inspired by his journey in architecture, discovered the power of the yellow-and-black combination while studying. It not only provided a visually strong impact but also served as a personal identifier for his tools. The yellow and black reminded him of robust heavy equipment like International Harvesting, Caterpillar and the speed of vehicles like Porsche and Ferrari. During countless all-nighters, the yellow colour acted as a visual boost, evoking a sense of happiness during the late hours. It also helped organize his workspace, bringing order amidst clutter. The easy readability of yellow letters against a black background, or vice versa, further solidified his fondness for this colour combination.

After being teased by family and friends for his yellow-only collection, he embraced blue as an alternative. He found blue clothes and blue dials to be elegant and unique, standing out from the typical black dials. The soothing nature of blue reminded him of the Caribbean waters, his birthplace of Cuba, and the Miami sky, his adopted home. Blue served as a counterbalance to the energetic yellow gadgets that surrounded him, providing a sense of tranquillity.

For diving watches, the yellow dials on grey or black cases deliver a sharp, tough, and reliable appearance, coupled with exceptional legibility. The combination became the corporate colours that defined Luis's vision. His vision was also transported to the Hydrium Amarillo dial, a shimmering yellow, while the Hydrium Azul boasts a captivating matte blue.

The Swiss Landeron movement ensures precise timekeeping, while the elegant 40mm bead-blasted stainless steel case perfectly complements the vibrant yellow and blue tones, making these watches versatile for all seasons and styles.

These limited editions of 50 + 50 watches by Luis Revuelta are now available for immediate delivery. Don't miss the opportunity to own a truly extraordinary timepiece that represents the seamless convergence of architectural mastery and horological artistry.

The Isotope Hydrium Amarillo is an exclusive limited edition of only 50 pieces and we have 10 available and ready to ship. The remaining 40 watches will be available mid-July.

Technical Specifications

  • Swiss Made
  • Micro-blasted case, 316L stainless steel, individually numbered
  • Case diameter 40mm X 48mm (with lugs)
  • Height 12.9mm (14.9mm with double domed Sapphire Crystal)
  • Hydrium® screw-down exhibition case back
  • Uni-directional bezel with 120 clicks 
  • Anti-reflective crystal sapphire
  • Screw-down crown at 3 o’clock
  • Shimmering yellow dial and black railway track style chapter ring
  • Black Isotope “i” hands filled with Super-LumiNova®
  • Water-resistance 300m / 30 atm / 1000 ft
  • 22mm Quick-release yellow FKM strap with signed micro-blasted Steel Buckle

Swiss Landeron Mechanical Movement

  • Automatic, self-winding
  • Power reserve 40 hours
  • 25 Jewels, 28800A/h
  • Accuracy -12/+12 s/day
  • Bespoke finishing with Perlage and Côtes de Genève

Ordering from and outside the U.K.

If you’re not based in the U.K. you'll probably need to pay import tax/duty when buying a watch (or any product) from Isotope Watches and other U.K.-based brands

Brexit changed the rules and since the 1st of January 2021, this also includes all countries within the European Community.

Prices within the U.K.

For customers in the U.K., all watches/products are priced including 20% of U.K. VAT.

As an example, if our watch is priced at £1,000, U.K. customers will need to pay £1,200 (£1,000 + £200 (20% VAT)

Prices outside the U.K.

For customers based outside the U.K., all watches/products are priced excluding U.K. VAT.

Your IP address will determine the prices you see on our website, but if for any reason you see prices including U.K. VAT, the prices will be updated at checkout, depending on your shipping address.

Isotope Watches Limited will not charge VAT when exporting, but you will certainly be asked to pay import duty and/or tax/VAT by your customs country.

How to pay for import duty/tax

We ship most of our products/watches via DHL Express. As per customs request, DHL will calculate the duty and taxes and they will collect the payment on behalf of your country's customs.

Neither Isotope Watches Limited nor DHL has control or profit over these costs/taxes.

How much do I need to pay in duty/tax to receive my watch?

It depends on the country you are based in.

Please see the examples below based on a £1,000 watch. These values are only a reference as they vary depending on the watch cost, and they might not be updated.


Within the U.K.

20% tax (GBP 200), is included in the price.

0% duty (GBP 0.00) + 0% DHL's handling fee


European Comunity Countries

Approx. 15%-24% tax (GBP 150 – GBP 240)

0% duty (GBP 0.00) + DHL's handling fee



10% tax (GBP 100)

0% duty (GBP 0.00) + DHL's handling fee



5% tax (GBP 100)

0% duty (GBP 0) + DHL's handling fee



5% tax (GBP 50)

8% duty (GBP 80) + DHL's handling fee



13% Tax (GBP 130)

20% Duty (GBP 200) + DHL's handling fee



10% tax (GBP 100)

5% duty (GBP 50) + DHL's handling fee


South Africa

15% Tax (GBP 150)

0% Duty (GBP 0) + DHL's handling fee


United Arab Emirates

5% tax (GBP 50)

5% duty (GBP 50) + DHL's handling fee


If you have any questions, please don't hesitate to email us: info@isotopewatches.com

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