2499J Series 4Ref

This 1980 yellow gold 2499, also known as the fourth-generation 2499/100, features the Beyer retailer signature on its dial. The series evolved through four distinct versions: square pushers with Arabic numerals (1951-1955), round pushers with baton or Arabic numerals (1955-1960), round pushers with baton numerals and seconds divisions (1960-1978), and the final version pictured here, which includes round pushers, baton numerals, seconds divisions, and a sapphire crystal (1978-1985).