A highly collectible Citizen Seven Star Deluxe 4-520238, manufactured in April 1968, is a significant piece from Citizen's "Monthly" series. This model was widely popular among students and office workers of its time due to its impressive price, performance, and practicality, making it a highly sought-after vintage item.

The watch features a matte black dial that provides a striking contrast, complemented by a textured silver month ring. Powerful bright baton hands and polished square hour markers are coated with luminous paint for excellent visibility, even at night. Its silver stainless steel cushion case has been polished and is in very good condition, offering a retro futuristic design. The unique triple-calendar design includes date and day windows at three o'clock, with a rare and collectible month indication on an internal rotating bezel, controlled by a secondary crown at two o'clock.

Powering this timepiece is the Caliber 5270, a 23-jewel automatic movement with an impressive black rotor. This movement is equipped with a day date function, and the date can be quickly changed by pulling the crown out one notch. The watch's Parawater technology further demonstrates Citizen's early waterproof engineering. The included aftermarket metal band with its wide center link and perforated clasp gives it a sporty, period appropriate look. This timepiece is a masterpiece from Citizen, combining functionality and practicality with a strong focus on design.