Model family · Tudor
Hydronaut
2 references2 variants1997–2000
Family timeline
All recorded years
19902000
2 references in production order. Overlapping bars show overlapping recorded dates.
19901993199519982000
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.