13/05/2026
In 1968, Seiko built Japan's first hi-beat one-piece diver's watch and changed what a professional dive watch could be.
Fifty-eight years later, the Seiko Prospex HBC001J1 carries that legacy forward — with one addition that even the original didn't have: a mechanical GMT movement. A first for any Seiko diver's watch.
The 6R54 calibre lets you track a second time zone mechanically, with no battery, no compromise. Pair that with a Japanese ceramic bezel, sapphire crystal, 300M water resistance, and three days of power reserve — and you have a diver's watch that's as capable as it looks.
The green dial is the choice for those who want to be remembered for it.
📍 Available now at City Chain Singapore — in-store and online.