I did this two beauties for a friend.....
Cannon pinion upgrade
Dial and hands relumed with "vaclume"
Ticker crown installed
Dial font dye
Lubed all seals
Enjoy!
There are 3 different sizes
H1 CP 2.65mm HW 1.65mm (most common)
H2 CP 3.0mm HW 2.0mm (The one Davidsen sells) Will work OK on base models with thin dials.
H3 CP 3.15mm HW 2.15mm (Hardest to get and the best fit IMHO)
Also many of the "taller" cannon pinions that come on the reps will slip and cause the watch to loose time.