What does Necessary and Optional mean on a Watch Repair Estimate?

What does necessary and optional work mean on a watch repair estimate? Short answer: necessary work are things that present itself as a functional issue. Optional work are generally things that present itself as an aesthetic issue. LINKS: P.S. Have you checked out my new Watchmaking course? Pre order The No BS Watchmaking Crash Course: https://nobswatchmaker.com/courses/watchmaking101 YouTube: https://www.youtube.com/channel/UCkLvRULrCMz2yD6ctFmXKPA Instagram: https://instagram.com/nobswatchmaker Facebook: https://www.facebook.com/nobswatchmaker Website: www.nobswatchmaker.com