Here after a recommendation on the watch repair forum.
Own a few Seikos, Citizens, Vostoks.
I’m a novice at watch repair - only on my second practice movement (a non working 7S26A) after losing the yoke spring and thoroughly mangling the balance spring of my first victim, a ST36 (Chinese clone of the 6497-2). Developing my screwdriver and tweezer skills and learning to clean and oil by repeated dis/reassembly of the 7S26. Have managed to lose both diafix springs of victim 2. One spring vanished while placing it one centimeter away into a container as it shifted out of the field of view of my microscope. Enjoying the new hobby. Have a few 1104a and 7S26A movements on the way to practice on (hairspring and diafix/diashock manipulation as well as oiling and assembly) before moving on to a sacrificial Seiko 5 watch and a new NH36 movement. Once my skill level improves, will attempt repair of the date mechanism and complete servicing of one of my 6R15 Sarb watches.
johnfrum - welcome to the forum! We're here to help and have lots of info on service around here. Best of luck with the projects at hand and with a little practice I bet you'll be fixing up that Seiko 5 and whatever comes next too!