There are 2 Models with model number 201L in the database
Single key wind movment, plastic lens, concentric alarm hand. First ones have nickel bezel, then brass.
Dates made: 1956 - 1964
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
