Eterna Diver Chrono Ref. 154 FTP (Cal. Valjoux 72 / 1491K) – Circa 1969 – The Quintessential 1960s Tool Chronograph
We are proud to present this striking Eterna Diver Chronograph, Ref. 154 FTP—also known as the Eterna 1491K—powered by the legendary Valjoux 72 movement. Produced circa 1969, this rare chronograph captures the perfect balance between mid-century precision engineering and adventurous dive aesthetics, making it a true collector’s gem.
Heritage & Design
In the late 1960s, Eterna was among the few Swiss maisons daring enough to merge professional dive capability with refined chronograph design. The Ref. 154 FTP epitomizes this era’s tool-watch innovation: bold, functional, yet effortlessly stylish. Its 41mm stainless-steel case, complete with round waterproof pushers, delivers the robust proportions associated with professional-grade instruments of the period—without compromising wearability.
The grey dial sets the tone, beautifully accented with black and blue details and warm, mustard-colored aged tritium plots that evoke the character and depth only decades of natural patina can produce. The rotating bi-directional bezel, perfectly faded with age, complements the instrument aesthetic while preserving its tactile charm.
Features & Condition
Dial: Original grey dial with contrasting sub-registers in black and vivid blue accents. The naturally aged tritium lume has developed a gorgeous golden hue, consistent across plots and hands—honest and untouched.
Case: Stainless steel, 41mm diameter, 15mm thickness. Strong lines and original geometry retained with only minor surface wear. Bezel turns freely in both directions as intended.
Movement: Manual-wind Eterna Caliber 1491K (based on the renowned Valjoux 72), freshly inspected and functioning accurately. Known for its robust chronograph column-wheel construction, this movement is celebrated among collectors for its reliability and smooth engagement.
Crystal: Original plexiglass, preserved with light signs of wear—adding to its authentic vintage charm.
Crown & Pushers: Original unsigned crown paired with the period-correct waterproof round pushers, all operating flawlessly.
Bracelet: Fitted on the rare original Eterna steel bracelet with full links—allowing a maximum wrist length of over 20cm. A detail seldom seen intact today.
Why Collect This Watch?
The Eterna Diver Chrono Ref. 154 FTP stands as a quintessential representation of late-1960s Swiss tool-watch design: purposeful, mechanically sophisticated, and visually compelling. Its combination of the legendary Valjoux 72 movement, dive functionality, and original bracelet make it an exceedingly desirable and complete example.
A genuine "tool watch" from the golden age of mechanical chronographs, this Eterna embodies both rugged functionality and vintage soul. For collectors seeking an authentic, well-preserved chronograph with dive heritage, this Ref. 154 FTP offers a rare opportunity to own an instrument of pure 1960s spirit—uncompromised and original in every detail.
