Vintage
Hmmmcamu presents a Seiko Chronograph featuring the Caliber 6138, specifically case reference 0011 from circa 1971, paired with its original Stelux President bracelet. The post delves into the technical innovations of this movement, highlighting its significance in chronograph history.
The Seiko 6139 chronograph movement, introduced in 1969, was a significant development in automatic chronograph technology. It was one of the world's first automatic chronographs to feature both a column wheel and a vertical clutch mechanism, innovations that contributed to its precise operation and smooth chronograph engagement. This movement was designed for robustness and reliability, reflecting Seiko's engineering capabilities during that era.
The 6139 caliber powered a variety of Seiko chronographs, often housed in distinctively styled cases that became popular among collectors. Its integrated design meant that the chronograph functions were built directly into the movement, rather than being modular additions. The movement typically featured a single sub-dial for chronograph minutes and a day/date complication.
For collectors, the Seiko 6139 series represents a pivotal moment in chronograph history, offering advanced technical features at an accessible price point. Its historical significance as an early automatic column wheel chronograph, combined with its diverse range of case and dial variations, makes it a sought-after vintage reference.
A watch very advanced for its time.
Would be Grand, if Seiko came up with something similarly revolutionary in chronographs again 🤞🏻
To be clear, Rolex never used the 7750 in their Daytonas. They used their modified version of the Valjoux 72. The 7750 was used in some Tudor chronographs, but never Rolex. Also, the 6138's are amazing watches! I own this exact model, and another version ("the Jumbo") as well.
which is full of character. Best, Emmanuel
This thread is active on the Seiko forum with 7 replies. Share your knowledge with fellow collectors.
Join the Discussion →
