Case: 18k white gold with extremely rare decorative finishing, typical of the most exclusive versions, 38 mm diameter
Movement: automatic Longines High Frequency (HF) caliber 6652
Dial: original blue dial with applied diamond hour markers
Crystal: sapphire
Strap: blue leather
Buckle: original Longines buckle
Reference: 4005-1
Period of production: 1970s
Accessories: original box and warranty
Condition: new old stock, never worn
Key Features
HF (High Frequency) version, symbol of Longines’ technical innovation during the 1970s
Extremely rare 18k white gold case with intricate decorative finishing
Original blue dial with diamond hour markers, a highly exclusive configuration
Never worn example, complete with original buckle, box and warranty
Historical Context
During the 1970s, Longines invested heavily in the development of high-frequency movements, designed to deliver greater precision and chronometric stability. The Flagship HF line represented the most elegant expression of this technical pursuit. Reference 4005-1, presented here in 18k white gold with blue dial and diamond markers, is among the rarest and most refined versions produced. A never-worn example, complete with its original accessories, represents an exceptional opportunity for collectors who value originality, condition, and historical significance.
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