Seiko

Paired with it's original 19MM straight end link SEIKO branded Stelux President bracelet. Introduced in 1970 and produced until approximately 1979. Part of Seiko’s pioneering generation of integrated chronograph movements to feature a column wheel and ver...  

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 ... 

which is full of character. Best, Emmanuel