Rare Vintage Swiss

Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model

Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model
Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model

Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model

This is a rare Cauny Prima diver chronograph with a high-grade Valjoux 7734 movement from the late 1960s to likely the early 1970s. The watch is a jumbo size for the era at 38.4mm and shows typical wear from a 60-year-old chronograph, particularly on the back of the lugs.

The watch was serviced in 2025 and is running well, keeping time, and the flyback chronograph is working as it should. Now on a rubber dive strap to fit up to 8. Cauny is one of the under-rated Swiss brands that produced high-quality watches.

The Prima models are especially sought after. The dial on this one is a sunray blue with a bidirectional rotating bezel that is still working well in both directions.

Model: Ref 98 5880 - Cauny Prima Jumbo Dive Chronograph Size: 38mm without the pushers. Dial: Original blue dial with black rotating bezel.

Movement: Valjoux 7734, with date window at 6 o'clock. Strap: Rubber vintage dive strap to fit 8.

Boxed: Gift boxed as shown. Pictures and Video Please see all photos and video as they form a key part of the description. If you want to see something not included in the listing, please let me know and I will do my best to meet your request. I will occasionally recirculate a watch -- like this one -- that I've had for a while. Whenever possible over my collecting history, I have bought watches that included their original boxes as I felt they were better cared for examples.

Not always, but whenever possible. If service history is known, I will list it, but recommend every vintage watch be serviced if you intend to wear it daily.

Please pay immediately if I accept a lower price and within 48 hours unless you let me know otherwise in advance. I don't collect those. I want you to love your new watch.


Vintage Swiss Jumbo Cauny Prima Chronograph Diver Valjoux 7734 Rare Model