Undive is an independent microbrand watch company founded in 2017 and based in Hong Kong. The brand entered the horological market with a focus on rugged, performance-oriented dive watches, taking design cues from classic vintage timepieces such as the Seiko 6105.
Watch enthusiasts appreciate Undive for its commitment to high-specification tool-watch construction inspired by the custom Seiko modification culture. The brand gained recognition for delivering professional-grade features and heavy-duty case architecture at an accessible microbrand price point.
The core model in the brand’s lineup is the Undive Dark Sea, along with its DLC-coated variant, the Dark Sea Black Storm. Built with a 45mm 316L stainless steel case, the Dark Sea features 500 meters (50 ATM) of water resistance, a helium escape valve, a sapphire crystal, a 120-click unidirectional bezel, and a matte black dial treated with SuperLuminova BGW9, all driven by the automatic Seiko NH35 movement.