Start Year
1950
End Year
1960
Jewels
21, 23
captainclock12 (not verified)
Posted January 16, 2012 - 2:34am
I am assuming the movement was made for a short period in the 1950s as I've seen one other Bulova watch that contained this particular movement and it was a 1957 Bulova Chronograph as seen in the following images:


So I'm assuming the movement was made for most of the 1950s for the high end models only.
kendeats
Posted April 12, 2023 - 3:03pm
I have a Bullova 23-jewel His Excellency dress watch made with the 10BP movement. Very slim case thickness. Manual wind. Sub dial at the 6 o'clock position.
1955mercury
Posted January 15, 2024 - 5:56pm
Two L9 NOS 10BP 23 jewel movements with uncut stems and still in the factory shipping movement holders.