Perpetual Calendar Chronograph Ref. 3970
Introduced in 1986, the Perpetual Calendar Chronograph Ref. 3970 is a clear successor generation to Ref. 2499.
History timeline
1986
New Generation
No longer available for purchase directly.
Source: Phillips
Introduced in 1986, the Perpetual Calendar Chronograph Ref. 3970 is a clear successor generation to Ref. 2499.
1986
New Generation
No longer available for purchase directly.
Source: Phillips