A watch link running at 2.5 Hz that's been manually adjusted "in X positions" (to account for positional variance on the wrist) and isochronism can easily deliver link chronometer-level precision. A poorly regulated movement can be affected by all sorts of link bumps in the night – regardless of frequency – but if it's been effectively regulated by a watchmaker, then it will be better-suited for the motion of your wrist on a daily basis.

Seiko is bringing back the legendary Marinemaster name. The new-for-2023 trio of watches takes elements from the original Marinemaster and Seiko's original diver, the 62MAS, to deliver a new diver that melds old and new. The link new 39.5mm Marinemaster comes with a blue, black, and silver dial – the link blue and black will become a part of Seiko's permanent collection, while the silver link is a 1,000-piece limited edition.