Seiko Expands Prospex Speedtimer Line with Five Solar Chronographs
Seiko introduced five Prospex Speedtimer solar chronographs, with four standard references and one limited edition. All share the V192 movement, 41.4mm steel cases, sapphire crystals, and 10-bar water resistance. The limited HBJ005 marks Seiko's 145th anniversary and is capped at 8,000 units, while pricing is $775 across the lineup.
Seiko’s latest Prospex Speedtimer release groups five solar chronographs around one platform. Four are standard references, while the fifth, HBJ005, is tied to the brand’s 145th anniversary and limited to 8,000 examples. All use the V192 solar caliber, with a rechargeable cell instead of a conventional battery.
The shared case measures 41.4mm across, 13mm thick, and 45.9mm lug to lug, with 21mm lug spacing and 168g weight. Sapphire crystal, LumiBrite, tachymeter scale, screw back, 10-bar water resistance, and magnetic resistance are common. Regular models vary mainly by dial and bezel colors; U.S. pricing is $775.
This release may appeal to watch buyers who prefer solar convenience and chronograph styling without mechanical upkeep. Because all five share specs and price, shoppers could focus on aesthetics, potentially making the limited anniversary model more desirable among collectors. It may also influence how brands position special editions: as design-led variants rather than technical upgrades. The main affected groups are enthusiasts, collectors, and casual buyers comparing value within a crowded field.