A rare and attractive chronograph wristwatch in stainless steel, with silvered dial and engraved tachymeter bezel.

The reference 6239 introduced the tachymeter to the bezel — a detail that defined the model's identity for the next half-century.

Condition & provenance

Offered from a private European collection, accompanied by its original punched guarantee and period bracelet.

• –Case unpolished, with crisp bevels
• –Dial with even patina, tropical subdials
• –Movement serviced by our workshop, 2025