2 products
Marinemaster (MM300) Bracelets for Seiko Mod
Find bracelets for your Seiko Marinemaster MM300 build at Watch&Style. The MM300 is Seiko's iconic professional diver, and this collection covers bracelets shaped specifically for the MM300 case in classic dive styles.
Bracelet Styles
The collection covers the popular MM300 bracelet styles. The Oyster bracelet offers the classic three-link diver look, while the Jubilee brings a dressier five-link style. Both are built to match the MM300's substantial professional-diver case.
Fit & Finish
Bracelets are machined from 316L stainless steel with curved solid end links shaped to fit the MM300 case, in brushed and polished/brushed finishes. They use fat spring bars and taper from 20mm at the lugs toward the clasp for a secure, comfortable fit on the wrist.
Choosing Your Bracelet
These bracelets are sized for the Seiko MM300 (Marinemaster) case specifically — although they share a 20mm lug width with some other Seiko models, the curved end links are shaped for the MM300, so match the bracelet to your case. Browse the full metal bracelet collection and straps for more options.
Frequently Asked Questions
Which models do these fit?
These bracelets are made for the Seiko Marinemaster MM300 (SBDX-series and compatible models). Confirm your specific model against the product details before ordering, as the curved end links are shaped for the MM300 case.
What's the difference between Oyster and Jubilee bracelets?
The Oyster is a flat three-link bracelet with a sporty, sturdy diver look, while the Jubilee has five smaller links for a dressier, more textured appearance. Both fit the MM300 — the choice is about the look you want.
What spring bars do MM300 bracelets use?
MM300 bracelets use fat spring bars (typically 2.5mm) for a more secure connection in the case's lugs, matching the substantial build of the professional-diver case. Check the product details to confirm what's included.
Browse the full Marinemaster bracelet collection above to find the right fit for your MM300 build.