CITIZEN BULLHEAD 67-9011 CHRONOGRAPH, VINTAGE 70s

Citizen Bullhead 67-9011: 70s Chronographic Revolution

Historical Context and Launch
The Citizen Bullhead 67-9011 emerged in the early 70s, during the creative boom of Japanese watchmaking. Designed as an automatic chronograph for modern users, its transgressive setup —with the crown and pushers located on the upper bezel (12H position)— evoked the “bull horns,” earning the nickname “Tsuno” in Japan. Produced between 1972 and 1975, its premature discontinuation turned it into a mythical piece for collectors.

Technical Advances: Caliber 8110
The model housed the caliber 8110, a self-winding movement with 23 jewels and high frequency (28,800 A/h), noted for three innovations:

• Flyback function: Instant reset of the chronograph without stopping it, technology previously exclusive to high-end pieces.

• Vertical clutch and column wheel: Minimized wear on abrupt starts/stops.

• Bi-directional winding: Optimized the 40-hour power reserve through an efficient central rotor.
  Despite its sophistication, it sacrificed water resistance and thickness to prioritize slimness and elegance.

Architecture and Visual Language
With a 38.5 mm stainless steel case —compact for its time—, it merged geometric lines and integrated “ears” for the bracelet. Its dial offered bold colors (sun yellow, neon orange, polar white) with contrasting subdials for maximum legibility. Key elements:

• Block hands and orange second hand: Tritium-coated for nighttime visibility.

• Tachymeter bezel: For speed calculations.

• “Fishbone” bracelet: Rectangular links that extended the angular aesthetic of the case.
  Its mineral crystal and limited water resistance restricted use in extreme environments.

Cultural Legacy and Collecting
After its disappearance in 1975, the Bullhead exponentially increased in value:

• Cinematic cult: Its appearance in a Tarantino film (2019) reignited its global fame.

• Rarity and preservation: Pieces with intact original materials (especially luminous dials) surpass €6,000.

• Technical influence: Showcased that technologies like the flyback could be democratized, inspiring contemporary Swiss brands.

Modern Reissues and Tributes
In the 2010s, Citizen revived the concept with models like the Eco-Drive AV0080:

• Titanium and solar power: 8-month autonomy without batteries.

• Flyback and 200m water resistance: Surpassing limitations of the original.

• Expanded “Tsuno” silhouette: 43 mm adapted to modern tastes.

Conclusion: Symbol of Audacity
The Bullhead 67-9011 embodies Japanese watchmaking audacity: a design that challenged norms, a pioneering mechanism (mass-produced flyback), and an aesthetic where utilitarianism fused with avant-garde. Half a century later, it remains a symbol of disruptive innovation.

TEMPPUS. All Rights Reserved.