![INEX Watches.CA on Twitter: "Seiko MM300 SBDX017 Discontinued – Get It While You Still Can Earlier this year, Seiko let us know that the Marinemaster 300 SBDX017 will be discontinued. And it INEX Watches.CA on Twitter: "Seiko MM300 SBDX017 Discontinued – Get It While You Still Can Earlier this year, Seiko let us know that the Marinemaster 300 SBDX017 will be discontinued. And it](https://pbs.twimg.com/media/DhUsY9IW4AAC4Ym.jpg)
INEX Watches.CA on Twitter: "Seiko MM300 SBDX017 Discontinued – Get It While You Still Can Earlier this year, Seiko let us know that the Marinemaster 300 SBDX017 will be discontinued. And it
![Seiko Marinemaster SBDX017 SBDX001 MM300, Men's Fashion, Watches & Accessories, Watches on Carousell Seiko Marinemaster SBDX017 SBDX001 MM300, Men's Fashion, Watches & Accessories, Watches on Carousell](https://media.karousell.com/media/photos/products/2018/11/03/seiko_marinemaster_sbdx017_sbdx001_mm300_1541212334_9e62504a_progressive.jpg)
Seiko Marinemaster SBDX017 SBDX001 MM300, Men's Fashion, Watches & Accessories, Watches on Carousell
![The Seiko MM300 did exclusive duty on a NATO - and looked great! | Seiko, Seiko diver, Vintage watches The Seiko MM300 did exclusive duty on a NATO - and looked great! | Seiko, Seiko diver, Vintage watches](https://i.pinimg.com/736x/9e/1a/c6/9e1ac6ffd8449b2d8ae24116327b5ecd--seiko-diver-nato.jpg)