The Chrono Master is a ‘high-end’ watch that first appeared in Citizen’s line-up in 1967. Although it was not the first of Citizen’s watches to include chronometer grade movements, since it was preceded by the hand wound ‘Chronometer’ (1962), it featured a range of models in both hand-wind and automatic forms, and has probably become Citizen’s most recognized high grade vintage watch, especially since modern versions have also been produced. Although there are other high end lines by Citizen, including the Chronometer and models in the Leopard line-up, the Chrono Master is probably the best known.
The 1967 Citizen Chrono Master ACSS2929-Y is a highly prized example of a vintage chronograph, distinguished by its revolutionary features for its period and its Caliber 5240 automatic movement. For collectors and fans of antique clocks, its high frequency, intricate chronograph functions, and graceful form make it a worthwhile addition. The watch showcases Citizen's dedication to accuracy and innovation in the watchmaking industry and marks a significant advancement in the company's history.
Their specifications are very similar, and they were part of the ’02’ family of movements indicating that they were developed and highly tuned versions of the humble ‘Homer’ range (first produced in 1962). This is immediately clear from the date version of the Homer which uses movements designated 18xx, with the Chrono Master using the 1870 variant. Because of this, collectors now highly value the Chrono Master 33J, which stands for the craftsmanship of classical watchmaking.
