SEIKO ASTRON/ SSH137 huggie Upper and lower plate in

Upper and lower plate in blue luminescent quartz fiber composite

Screw‑in crown

NUMBER OF JEWELS 26 Jewels

auto cumulative ascent and descent of particular treks) Others: Relative altitude readings (-3

Dial color : Black

SEIKO ASTRON/ SSH137 huggie Upper and lower plate inASTRON GPS SOLAR LIMITED EDITION Astron GPS Solar Limited Edition. With the strong, sleek lines of the Seiko Astron, the worlds first commercially available quartz watch, todays Astron is designed for a new generation of leaders, breaking through to the future with excellence in both innovation and style. Available only in a controlled production run of 1,200, with the production serial number engraved on each caseback, this distinctive Limited