Sentry Chrono All Matte Black /Polished BlackDescription: This not so standard custom built chronograph is a rugged balance of technical functionality and elevated style. The Sentry Chrono has a new and refined movement that's perfect for the thrill seeking professional badass.

The case is made of fine resin that incorporates carbon fiber for light weight along with rigidity that is superior to that of resin

Rotation of the blades reveals red coloring behind the disk

More than a pretty face with a giant ego

Total weight : 72g

battery life: 7 years on CR2016`

crack resistance

Step indicator

Others: Auto-repeat

This lineup’s colors are based on a summer sea motif

The result is a super luminous display that's a true reflection of G-Shock's desire to keep improving timekeeping

boldly printed indices

day Accuracy: +/- 15 seconds per month Approx