Seiko 6159-7001 Professional High-Beat Diver

Ultra-rare Seiko 6159-7001 Professional Diver, produced in the late 1960s (March 1969), representing one of the earliest high-end professional dive watches ever released by Seiko.

This early example belongs to the highly significant first generation of Seiko’s 300m professional divers, identifiable by its monocoque case construction and the high-beat 36,000 A/h caliber 6159A, a movement derived from Seiko’s Grand Seiko line. These early pieces combine toolwatch robustness with chronometer-grade precision and mark a pivotal step in the development of modern Seiko diver design.

Produced only for a very short period, the 6159-7001 stands as a transitional reference between Seiko’s experimental 1960s diver engineering and the later iconic Marinemaster and Tuna generations. Early original examples with correct dial, handset, and bezel configuration are particularly sought after by collectors today.