Here is a watch I acquired some years ago from Watchco, built by them from "NOS" parts.
On the left is an original 145.012 for comparison. More on service parts here:
Why don't we want Service Parts? - A quick guide for a Newcomer | Speedmaster101
On the left is an original 145.012 for comparison. More on service parts here:
Why don't we want Service Parts? - A quick guide for a Newcomer | Speedmaster101