Is the Seamaster Diver 300M good for actual diving?

Yes. It is rated to 300 m, has a unidirectional dive bezel and a helium escape valve for saturation diving.

How does it compare with the previous generation?

This generation uses a ceramic dial and bezel and an anti-magnetic movement, where older models used aluminum bezels and less magnetic resistance.

It can be. The 50 mm lug-to-lug and 14 mm thickness make it wear large, so try it on before buying.

No. It runs on an automatic movement powered by wrist motion, with no battery to replace.

Typically the watch on its steel bracelet, a presentation box, and warranty and pictogram cards; confirm contents with the seller.

Grey-market and online sellers like WatchMaxx.com often undercut boutiques; the best new price was $5,150 as of November 6, 2026.

At WatchMaxx.com, for $5,150.00, as of our latest check.

Rated 4.8 out of 5 from 197 ratings.

12 stores we checked sell it, including WatchMaxx.com, Walmart, WatchWarehouse.com, bachendorfs.com, Bryant & Sons.

$5,150.00at WatchMaxx.comObserved at 5:12 PM

Compared across 3 stores. Prices are checked against each store and labelled with when.