Custom watch is a form of after-market customization of a SEIKO watch.

This means that adjustments have been made to the watch after it has left the factory. For example, after we got original SEIKO watch from factory and we customized the new hand style , sapphire, ceramic insert on the watch , the customize parts can come from 3rd part or other SEIKO parts

That change the watch different looks from SEIKO factory

This is customized watch