Oyster Perpetual Date

Family timeline

37 references in production order. Overlapping bars show overlapping recorded dates.

• 6535c. 1945–c. 1958
• 6518c. 1954–c. 1960
• 6534c. 1954–c. 1960
• 1510c. 1956–c. 1969
• 1503c. 1960–c. 1980
• 6624c. 1960–c. 1967
• 6627c. 1962–c. 1972
• 1507c. 1964–c. 1975
• 6629c. 1964–c. 1965
• 1505c. 1968–c. 1980
• 15010c. 1970–c. 1988
• 6924c. 1970–c. 1981
• 1511c. 1971
• 1550c. 1971–c. 1980
• 1530c. 1974–c. 1977

Dates are those recorded in the catalog. Faint bars mark approximate dates; a dashed point marks a single known endpoint. Undated references remain visible. Chronological order does not establish a predecessor or successor relationship.