Seiko Jumbo Chronograph - 6138-3002 seiko The Citizen Promaster line is

The Citizen Promaster line is famous globally for its durability- and this quartz diver is no exception

it's a "hammer-down" style

The integrated bracelet and large

opulent look

add even more flair to the dial

Seiko Jumbo Chronograph - 6138-3002 seiko The Citizen Promaster line isA robust and highly sought after Seiko Jumbo Chronograph 6138 3002 from 1977 JDM, this timepiece is a true icon among vintage chronographs. It features a bold black dial with contrasting sub dials, giving it a distinctive and purposeful look. The substantial stainless steel case, earning it the "Jumbo" nickname, provides a commanding presence on the wrist. The black dial is complemented by yellow accents on the chronograph hands, ensuring excellent