Originally Posted by
strutjack
The movement is a Seiko H461, it's not a H601 that's an altogether different Seiko analogue digital. It's also not a Miyota Y652, it's a Hattori Y652 (or the later Y653). You'll find Y652/3s marked Hattori, Pulsar, Epson and Morioka Tokei but never Miyota. While there was a Miyota movement named Y652 it was a conventional analogue quartz and bears no resemblence to the Seiko. The internet being what it is however (lots of quoting with little checking) the Miyota has become the most routinely cited movement, even on Breitlingsource.com.
What this means though is that even though it's incorrect if you're searching for a replacement movement online you do need to use Miyota in your search terms. The movements and complete watches (Seiko, Pulsar and Lorus) come up reasonably often on eBay and if you're fortunate auctions can still be won for less than £30 although you might not get the digital display colour you want (gold vs. grey).
Hope this helps.