Ball Balance Bridges

Some help in identifying your Ball Watch look at the hairspring stud


The regulator of an Illinois 16 size 23 jewel Ball

 

The regulator of a Waltham 16 size 19 jewel Ball

 

The regulator of an Elgin 18 size 21 jewel Ball

The regulator of a Hamilton 16 size 23 jewel Ball

 

The regulator of a Hamilton 16 size 999b 21 jewel Ball

 

The regulator of a Hamilton 16 size 999 21 jewel Ball

The regulator of a Hamilton 18 size 17 jewel Ball

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