Seiko Prospex Speedtimer Mechanical Chronograph Srq039 Ruthenium plated with the color of the

with the color of the horned helmet complemented by matching details in the scaled hour markers

The GM700-1A is one of the biggest G-SHOCK steel watches in the G-STEEL family

or exploring the outdoors

in a brilliant sunray finish

Seiko Prospex Speedtimer Mechanical Chronograph Srq039 Ruthenium plated with the color of theProspex Speedtimer Mechanical Chronograph. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Celebrating Seiko's first precision chronographs, developed for international sporting competitions in 1964, as well as its 1969 introduction of the world's first automatic chronograph, this exceptional watch provides chronograph measurement of up to 30 minutes of