Seiko LM Special automatic , Cal. 5216-7080 hi beat 28800/ case no.4N0054, made in Japan. All original parts with good condition. OH… | Instagram
28,800 vs 36,000 bph seiko watchs - YouTube
WTS] Vintage King Seiko – Hi Beat 28,800 – 5626-7110 – 25J Automatic Winding Cal. 5626A – May 1972 JDM ---- 375 USD Only Or Best Offer : r/Watchexchange
WTS] King Seiko Chronometer 5625-7060 Automatic 28800 bph : r/Watchexchange
Seiko Presmatic Day and Date High-Beat 28800 5146-7080 Serviced for $323 for sale from a Seller on Chrono24
Sounds of watches: 18000, 21600, 28800 and 36000 bph. Grand Seiko, Tudor BB36, Seiko SKX, Hamilton - YouTube