Current Production
Astron GPS Solar Dual-Time Chronograph
SEIKO SSH151
MSRP
$2,700 USD
Verified Aug 18, 2026
Case diameter43.3 mm
Lug-to-lug49.5 mm
Thickness13.4 mm
Case materialTitanium case with super-hard coating
CrystalDual curved sapphire crystal with super clear coating
Water resistance100 m
MovementGPS Solar Chronograph, Caliber 5X83, Powered by light energy - no battery change required, Power reserve: approximately 6 months once fully charged
Calibre5X83
DialBlack
Bracelet or strapTitanium bracelet with super-hard coating
Specifications as published by Seiko →
Last verified Aug 18, 2026