The watch shape takes its cues from the original SeikoAlpinist,first launched in 1959 for JapaneseYama-otokomountain men, to be reliable in treacherous terrain. Benefiting from over 140 yearsof Seikos watchmaking expertise, this watch is powered effortlessly by the caliber 6R35 and is a higher grade inhouse manufacture mechanical movement. Beating at a frequency of 21, 600vph, it will provide superior timekeeping accuracy of -15/+25 seconds per day with an extended 70 hour power reserve. Besides offering convenienthackingseconds function for the re-setting of ultra accurate seconds time, this caliber isautomaticand will re-charge the mainspring with your movement and is also convenientlyhand windablewith quick date correction. Peace of mind is provided from magnetic resistance of 4, 800 A/m (60 gauss) and with SeikosDiashockshock protection system. Equipped with an ultra-scratch resistant curved sapphire crystal, it also has an anti-reflective coating on the