Model family · Zenith
El Primero
22 references26 variants1969–2000
Family timeline
All recorded years
19602000
22 references in production order. Overlapping bars show overlapping recorded dates.
19601970198019902000
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.