Thank you so much for all of your words. It is heartwarming.
I'm beginning to understand a lot from everyone. Thank you for your responses.
I didn't think of using it occasionally, like family gathering. I only thought of wearing it with pride knowing he is close to my heart. Thank you everyone for your sympathy. Then I won't be wearing this on daily basis when I get this fix.
I even thought of achieving it to mint, but then, after reading your comments, the watch itself is the story. So I will keep it to a "clean" restored watch, rather than trying to make it brand new. Base on your comments, it doesn't sound like it's very hard to restore this.
I really had fun watching at the restoration video. @JBird7986 I'm inspired to get this watch to work.
And thank you everyone for your opinion, I now allow myself to purchase a watch that I love. While restoring my family's old watches. I'm sure it will be interesting.
I will update here once the watch has been restored.