Long Nguyễn Thanh on Instagram: "Rare Seiko King Quartz 9923-8030/ case no.943956, made in Japan. All original parts with super condition. Price 680$ with included shipping fee, 0909085276. #KQ #KingQuartz9923 #KQ9923 # Seiko #
Seiko King Quartz 9923-7000 Day & Date Circa 1979 Patina Vintage – Temple of Time
1979 Seiko King Seiko Twin Quartz men's vintage watch. Model reference 9923-8050 - YouTube
Vintage SEIKO KING QUARTZ TWIN 9923-8030 STAINLESS Mens Watch JAPAN RARE | WatchCharts Marketplace