– Seiko unveils two limited-edition Prospex dive watches for its 145th anniversary: HBB001 and HBC005, both featuring the signature Seiko Blue.
– HBC005: premium 40mm stainless steel case, Caliber 6R55, 72-hour power reserve, 300m water resistance, inspired by Seiko’s 1965 first diver.
– HBB001: larger 41.7mm stainless steel case, Caliber 4R35, ~41-hour power reserve, 200m water resistance, dual-tone rotating bezel, about $800 cheaper than the HBC005.
– Availability in June across US, Japan, UK, Australia, and Europe; pricing varies by market.
Seiko hits 145 this year, and marks it by rolling out a batch of special edition watches across Prospex, Astron, and Presage lineups. We’ve already seen the Astron HAB004 Anniversary edition and the likes of Prospex Speedtimer SRQ059 and King Seiko SJE121. Now, the Japanese maker has announced two fresh limited edition dive watches: the Prospex HBB001 and the Prospex HBC005.
Anniversary lineup
Seiko is rolling out these two divers with a clean look, but the real star of the show is “Seiko Blue.” It’s a signature deep blue hue baked into the brand’s identity since the 1960s. On the HBB001, it provides a fun dual-tone rotating bezel. On the HBC005, that same blue hits the unidirectional bezel and seconds hand, creating a brilliant contrast against a crisp, silver-white dial.
Seiko Blue details
The HBC005 is the more premium and powerful of the two, sporting a Caliber 6R55 automatic movement that delivers a respectable 72-hour power reserve. Its 40mm stainless steel case nods to Japan’s very first diver’s watch released in 1965, keeping an iconic yet compact vibe. Being a dive watch, the HBC005 also offers 300 meters of water resistance.
Performance and dimensions
By comparison, the Prospex HBB001 wears a slightly bigger 41.7mm stainless steel case. It runs on the Caliber 4R35 automatic movement, with about a 41-hour power reserve. Its 200 meters water resistance sits a notch lower than the HBC005, and yet the HBB001 lands roughly $800 cheaper.
The Seiko Prospex HBC005 and HBB001 are slated to go on sale in the US, Japan, the UK, Australia, and Europe in June. Pricing across markets are as follows: