![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/originals/9e/1a/c6/9e1ac6ffd8449b2d8ae24116327b5ecd.jpg)
The Seiko MM300 did exclusive duty on a NATO - and looked great! | Seiko, Seiko diver, Vintage watches
Kedai Jam GTC - PRE OWNED USED FULLSET #SBDX017 ( RM8xxx ) SEIKO MM300 MARINE MASTER PROFESSIONALS MADE IN JAPAN 🇯🇵 8L35 CALIBRE AUTOMATIC 44MM DIAMETER SAPPHIRE CRYSTAL DM MORE DETAILS 0139406000 | Facebook
![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)