Seiko sq 100 ref.7t32-6620 38mm for $279 for sale from a Seller on Chrono24
WTS] Seiko SQ100, the Retro Full Lume Seiko Chronograph with a Chirping Alarm, New Old Stock Watch/Never Worn, Comes with Original Seiko Leather Strap and New Military Green Nato Strap : r/WatchExchangeCanada
Vintage Seiko Chronograph SQ100 Round Alarm Timer Quartz Japan Men Wristwatch | eBay
Seiko Alarm Chronograph SQ100 ref.7T32-7C40 vintage for $268 for sale from a Private Seller on Chrono24