Ah, the 1970s—a time when tool watches meant business. No compromises, no concern for slipping under a cuff—just pure function-driven design. This hefty 46mm dive watch is a true engineering marvel, featuring a battery-powered movement that winds the mainspring and utilizes a unique diaphragm system to measure and display depth underwater. At 12 o’clock, you’ll find a valve that allows water to enter a metal tube filled with oil inside the case—an incredibly innovative approach to depth measurement! For added functionality, the crown is positioned on the left-hand side, likely to prevent accidental unwinding during a dive. The unidirectional dive bezel sits atop the robust case, ensuring safe timing underwater. The dial is a striking black and white design, with a bold orange fourth hand to display real-time depth readings. And here’s a cool detail: the movement is signed by Tissot, adding an unexpected touch of horological intrigue. To complete its funky, chunky 1970s tool-watch aesthetic, we’ve paired it with a single-pass strap that perfectly matches its rugged spirit. If you love innovative, purpose-built dive watches, this Aquadive Time-Depth is calling your name. Get in touch! Specifications: - Aquadive Time-Depth dive watch- Water depth measurement, displayed via a fourth hand- 46mm stainless steel case with valve at 12 o’clock and left-side crown- Unidirectional rotating dive bezel- Tissot-signed movement, battery-powered- Single-pass strap- Fully checked by our watchmaker- One-year mechanical warranty- Free worldwide FedEx Priority shipping