Just received this watch from a friend in Japan via EMS speedmail. It looks new and minty. No scratch, no sign of wear and no sign of aging at all.... Which makes me wonder what is this watch doing for the last quarter of the century???
GS 5645-7010 used a high grade 25 jewels high beats (28,800 Vph) seiko in house movement adjusted to 5 positions and 3 temperature settings. This watch was made in 1973.... Even more elderly than I.... Luckily it is made of stainless steel with plastic crystal top. At the screw down back there is a "GS" signed gold medalion showing off the majestic might of Seiko's superiority.