89ST Series Stopwatches - Olympic Sports Timers — Plus9Time
Vintage Seiko 30s Stopwatch 88-5020 Analog Watch Hand Used Authentic 9501910 | eBay
11 Gorgeous Vintage World Time Watches | Vintage Watch Inc
My newest catch, working vintage Seiko stopwatch. Dial says [90-5060T] and back says [90-5040]. The movement says Seikosha, Seiko branch. I cannot find more details, or production year. Anyone more info? :