a gas tube is placed on each hour marker

and outstanding value in one elegant design

First developed by Marathon Watch Company in 1986

it handles most water-based activities except deep diving

Casio Vintage Unisex Silver Watch G-Shock a gas tube is placedIntroducing the A171 Series of round face, unisex timepieces. Uncluttered monotone coloring combines with middle sized unisex designs that go great with a wide variety of styles. The bands feature a slide type clasp that lets you easily adjust the band length without special tools. Features and functions include calendar and stopwatch capabilities, along with everyday wear water resistance and LED light illumination for easy reading in the dark.