Originally a 7S26 which was wrecked by shards of broken crystal. Now an NH36 which is the same, but has manual winding and hacking seconds. I actually had to buy two new NH36 movements because the first one wasn’t adjusted very well from the factory at the balance. Crystal is now a curved one instead of flat.
It takes quite a lot of practice to do it well, but a beginner might be successful if they are quite practical and have a good step-by-step guide. The tools are not cheap. I find Seikos quite difficult sometimes because the parts can be quite flimsy compared to Swiss watches.
Originally a 7S26 which was wrecked by shards of broken crystal. Now an NH36 which is the same, but has manual winding and hacking seconds. I actually had to buy two new NH36 movements because the first one wasn’t adjusted very well from the factory at the balance. Crystal is now a curved one instead of flat.