Topper Fine Jewelers - Seiko Diver's 300M (1968) - In 1968, Seiko released the Diver's 300M, Japan's first high-beat diver's watch. With a 10-beat caliber, monobloc case structure, rotating bezel, and screw-down
![Vintage Seiko Professional 6159-7001 Diver 300 Hi-Beat Steel Automatic 44mm Wristwatch | HASHTAGWATCHCO Vintage Seiko Professional 6159-7001 Diver 300 Hi-Beat Steel Automatic 44mm Wristwatch | HASHTAGWATCHCO](https://www.hashtagwatchco.com/cdn/shop/products/IMG_3563_1445x.jpeg?v=1586114547)
Vintage Seiko Professional 6159-7001 Diver 300 Hi-Beat Steel Automatic 44mm Wristwatch | HASHTAGWATCHCO
![WTS/WTT] Seiko Prospex Diver 300m SLA019 / SBDX021 Limited Edition NOW WITH FREE ARTEM STRAP : r/Watchexchange WTS/WTT] Seiko Prospex Diver 300m SLA019 / SBDX021 Limited Edition NOW WITH FREE ARTEM STRAP : r/Watchexchange](https://preview.redd.it/wts-wtt-seiko-prospex-diver-300m-sla019-sbdx021-limited-v0-uvcrb0yaavyb1.jpg?width=640&crop=smart&auto=webp&s=ceb5965a79e54a4ddb4c00a838f824789ab764ef)
WTS/WTT] Seiko Prospex Diver 300m SLA019 / SBDX021 Limited Edition NOW WITH FREE ARTEM STRAP : r/Watchexchange
![IN-DEPTH: A top-of-the line Seiko diver, SLA037 Vs. the lesser-seen Omega Seamaster 300, same price, different experience? IN-DEPTH: A top-of-the line Seiko diver, SLA037 Vs. the lesser-seen Omega Seamaster 300, same price, different experience?](https://timeandtidewatches.com/wp-content/uploads/2020/08/image00004-3.jpeg)
IN-DEPTH: A top-of-the line Seiko diver, SLA037 Vs. the lesser-seen Omega Seamaster 300, same price, different experience?
![Celebrating 55 years of Seiko diver's watches, three legends are re-born in Prospex. | Seiko Watch Corporation Celebrating 55 years of Seiko diver's watches, three legends are re-born in Prospex. | Seiko Watch Corporation](https://www.seikowatches.com/us-en/-/media/Images/GlobalEn/Seiko/Home/news/20200305-67527300709/Originaldjpg.jpg)