There are 2 Models with model number 850 in the database
Ben Franklin time-only electric clock, black composition case with gold trim. Sangamo self-starting motor.
Dates made: February 1935 - 1937
Westport "Fraser" man's wristwatch, 7 jewel, chrome case, full numeral dial, chrome plated expansion band, red second hand.
Catalog Dates: 1962 - 1964