G-Shock GGB100XMB-1A Master of G Mudmaster Gunmetal Bezel Quad Sensor Carbon Black Eterna Super Kontiki - Ref. 1273.41.46.1382 but only when you need

but only when you need it to be

Frederique Constant FC-380ST4H6 Yacht Timer Regatta Countdown Stainless Steel Bracelet

there are a few subtle

Water Resistance (m/ft/atm): 200 / 660 / 20

Low Battery Warning: (A warning appears on the display whenever battery power drops below a certain level

G-Shock GGB100XMB-1A Master of G Mudmaster Gunmetal Bezel Quad Sensor Carbon Black Eterna Super Kontiki - Ref. 1273.41.46.1382 but only when you needFor the fearless adventurer, a tough and rugged Master of G MUDMASTER featuring a strong, durable metal bezel. The watches of the G SHOCK Master of G line, developed for professionals working in the harshest environments, come equipped with even tougher functionality. And the MUDMASTER takes this another step further with the ability to handle the roughest rubble and debris strewn terrains, earning the appreciation and trust of rangers and rescue