1970s Citizen hi-beat day-date with a brushed, tonneau-style stainless case and integrated bracelet. The blue/silver sector dial reads “28800 • 21 Jewels,” with a framed day-date at 3 o’clock and slim baton hands/markers. Reliable 6600 automatic inside, screw-back case, and acrylic crystal—compact, quirky, and very 70s.
Key Features :
Japanese automatic movement (Citizen cal. 6600), 21 jewels, 28,800 bph
Stainless-steel case; stainless screw-back
31mm dial; acrylic crystal
Blue/silver sector dial; applied logo; baton hands/indices
Day-date at 3 o’clock (often bilingual)
Integrated stainless bracelet with signed clasp
“Water Resistant” period marking (not pressure-tested today)