Reservoir Hydrosphere Blackfin Watch

Reservoir Hydrosphere Blackfin Watch RSV03.HY/130-21.BF

The Reservoir Hydrosphere Blackfin Watch RSV03.HY/130-21.BF is a professional diving timepiece inspired by underwater pressure gauges and deep-sea exploration instruments. Part of the Hydrosphere collection, this Reservoir watch translates the functional design of scuba diving equipment into a distinctive mechanical time display. The bold dial layout and robust construction reflect the brand’s philosophy of transforming real-world measurement tools into unique Swiss watches. Designed for clarity and reliability, the Hydrosphere Blackfin features a highly legible dial that echoes the appearance of diving air gauges used by professional divers.

Powered by a Swiss automatic movement, the watch incorporates Reservoir’s signature retrograde minute display and jumping hour complication, creating a dial layout reminiscent of a diving pressure gauge. This innovative display ensures exceptional readability while delivering precise mechanical performance. Built with durability and underwater performance in mind, the Reservoir Hydrosphere Blackfin Watch combines instrument-inspired design, reliable Swiss watchmaking and bold contemporary aesthetics. For collectors and enthusiasts seeking a distinctive diving watch with mechanical creativity and technical inspiration, the Hydrosphere Blackfin stands as a unique interpretation of the modern dive watch.

Free UK Next Day Delivery
We offer free UK next day delivery on all in-stock orders over £75.

• Order before 4pm (Mon–Fri) for same day dispatch
• Delivery typically arrives next working day before 1pm
• Fully insured, tracked and signed-for service
• Priority delivery upgrades available at checkout

Worldwide Shipping
We ship worldwide using trusted, fully tracked and insured courier services.

• Shipping costs calculated at checkout
• Fast international delivery options available
• Secure and insured transit on all orders
• Local duties and taxes may apply upon arrival

30 Day Returns
Shop with confidence with our 30-day returns policy on most items.

• Return or exchange within 30 days of delivery
• Items must be unworn and in original condition
• Includes all packaging, documentation and accessories
• Sale, pre-owned or promotional items may be subject to a 14-day return period

Important Information

• Bespoke, personalised or resized items are non-returnable
• Altered watch bracelets are considered customised
• Returns should be sent via insured, tracked delivery

Spread the cost with a range of trusted payment providers, designed to give you flexibility and complete control.

Shop Pay Instalments

• Split your purchase into 3, 6 or 12 monthly payments
• Know exactly what you’ll pay
• Quick application with no impact to your credit score
• Simple selection at checkout

Offered in partnership with Affirm and subject to status and approval.

PayPal Pay in 3

• Divide your purchase into 3 interest-free payments
• Pay the first instalment today
• Remaining payments taken automatically
• No fees when paid on time

Available on purchases between £20 and £3,000. Subject to eligibility.

Klarna

• Pay in full today
• Pay in 30 days
• Pay in 3 interest-free instalments
• Longer-term finance options available

Klarna options are subject to status. Terms and conditions apply.

Important Information

Payment options are subject to eligibility, status and terms. Missed payments may impact your financial status. UK residents only, 18+.