There are 4 Models with model number 75 in the database
Bantam style 2 alarm clock in green case with stamped steel base.
Dates made: August 1932 - August 1934
Bantam style 3 alarm clock in green case with black base.
Dates made: August 1934 - November 1935
Big Ben style 7 in white case with brass trim, luminous dial. Single key wind movment, plastic lens, concentric alarm hand.
Dates made: 1956 - 1964
Big Ben style 7 in white case with brass trim. Single key wind movement, plastic lens, concentric alarm hand.
Dates made: 1956 - 1964