2-liter / 70 Oz Hydrapak reservoir

Ultra durable reinforced bottom

breathable air flow back panel

The Seiko watch comes with a silver-tone stainless steel case with a two-tone (silver-tone and gold-tone) stainless steel bracelet and caliber number 8T63

offering excellent comfort

Bertucci A-1S Super Field Men's Black Dial Defender Khaki Nylon Band Analog Japanese Quartz Watch - 10601 Size_One size 2-liter / 70 Oz HydrapakBertucci A 1S Super Field Men's Black Dial Defender Khaki Nylon Band Analog Japanese Quartz Watch The Bertucci A 1S Super Field watch is a tough and reliable timepiece that embodies the traditional military field watch style. It has a highly legible black dial with luminous hands and markers for easy visibility even in low light circumstances. The "Defender Khaki" nylon band fits comfortably and securely, complementing the watch's practical