Reddit mentions of Beginner Watchmaking: How to Build Your Very First Watch

I haven't read it myself, but judging from the reviews, this may be the sort of thing you're after:

https://www.amazon.co.uk/gp/aw/d/1456451650/ref=mp_s_a_1_4?ie=UTF8&qid=1483203754&sr=8-4&pi=AC_SX236_SY340_QL65&keywords=watchmaking+book&dpPl=1&dpID=41aIcUE%2BAoL&ref=plSrch

If there is a horology school anywhere near you, that's your best bet to actually making something that can keep time. I know a guy who attended horology school, and his entire career is watch repair.

It is very unlikely that you're going to go machining your own gears, so horology is all about the fine tuning of those pieces. This may sound disappointing, but just getting the balance wheel and spring tuned right, everything properly lubricated, the innards cleaner than clean, making sure the escape's jewel has just the right amount of wobble, all of that can take a lifetime to master, so you'll have plenty to learn. The slightest kink in the balance spring is the difference between a useful timepiece, and a rather pretty pile of gears that tells you it's 4 when it's really 6.

There's a reason you've never seen the phrase "hobby watchmaker" before. It's a specialized, endangered, dedicated craft with tons of specialized equipment.

Edit: evidently there's some kind of online school for this, though it looks kind of dubious http://www.timezonewatchschool.com/WatchSchool/

This article includes a short list of watchmaking schools http://watchmakingblog.com/2009/02/13/so-you-want-to-be-a-watchmaker/

Finally, there is this book: http://www.amazon.com/Beginner-Watchmaking-Build-First-Watch/dp/1456451650
Honestly, I'd be pretty surprised if this book alone led you to creating a function accurate timepiece, but it sounds like it could be fun

Edit: I'm also realizing that I completely assumed you mean a watch with a mechanical movement. If you just want to make your own watch using an existing quartz movement, that would be considerably easier.

Do you mean making the movement, otherwise, these guys sell one you disassemble and re-assemble. I'm sure you could use the movement in a pocket watch.

I just bought a guide to beginner watch making, I want to make my own pickles and hot sauce, I get happy every time I look at my potted mangroves, I have more than one bonsai, I yell at the kids in my apartment building for blasting their bass, I am interested in making my own terrarium, I am going to King Richard's Fair, I am going to the Highland Games, I'm moving in with my girlfriend (no pic for you!), my knees ache everyday, and the majority of my paycheck goes towards buying books.

Edit: I exclusively listen to talk radio in the car.

I am 24 going on 65.

Edit 2: Hemorrhoids. They happened cause I had surgery and didn't shit for a week I think... but come on!

Harold over at yobokies has got near everything for 5 mods. Another user mentioned him already but didn't really link to his site or mention that he sells parts for your own mods in addition to custom watches.

Before my first tinkering I picked up this book from amazon and found it to be really helpful in getting the language down, amassing a tool kit, and listing parts suppliers. It was somewhat limited though and really gives you a pretty chop-shop approach to several things so I stopped referencing it shortly after that... Was easy to find guides online after understanding the basic steps/jargon though.