Citizen launched its vertical-clutch column wheel 8110 flyback automatic chronograph - like this freshly serviced example from 1976 here - in 1972 with a compact design, allowing for a smaller case. The 8110 tends to be lighter than, for example, the Seiko 6139 chronographs of the period, but just like the 6139 the 8110 featured nearly a dozen different variants.
Although the 8110 movement may have been Citizen’s answer to Seiko’s famed 6139 movement, the Citizen 8110 was superior in one manner – unlike the 6139, the 8110 features hand winding and a ‘flyback’ feature – which allows the wearer to zero the chronograph whilst it’s running, rather than having to stop it first, then restart. This permits an instant stop and re-start of the chronograph function.
All 8110 variants have the column wheel/vertical clutch design. These movements have quick setting mechanisms for date and day. Both are set when the crown is pulled out one position – the date by rotating the crown, the day by pressing the reset button. Compared to modern chronographs, the only chronographs in today’s market with similar features and construction sell at a far higher price point – such as Blancpain, Vacheron Constantine, Patek, and Audemars. The 8110’s are the least expensive, yet most sophisticated chronograph ever made!
This Citizen 8110 comes with a leather rally strap, nylon NATO strap, spring bar tool, and a Pelican travel case.
1976 Citizen 67-9038 Challenge Timer 8110 Chronograph
DIAL: Exquisite original dial with original minute, hour, and chronograph hands - of note, the chrono seconds hand retains its reddish-orange tip, a nice bonus. The shimmering deep silver Citizen-signed dial is sharp - and rather distinctly 1970's in its design and contrasting blue, silver, and white colors.
CASE: Stainless-steel Citizen 38mm x 44mm (with crown) case, with stainless-steel caseback. The case also features hooded lugs.
CRYSTAL: Citizen-correct crystal, scratch and blemish-free.
STRAP: This Citizen comes with a light brown leather rally strap, with cream-colored accent stitching, as well as a an 18mm dark blue and gray nylon NATO strap – a nice sporty complement to the 8110's classic vintage styling.
MOVEMENT: Original Citizen 23-jewel automatic movement, manufactured in January 1976 - this watch has received a full service. The 8110 flyback tachymeter movement can be wound either manually or automatically. Separately, the date and day - with Kanji Japanese/English calendar variants – rotate and set as designed.
CROWN: Original Citizen-signed crown.
CHRONOGRAPH PUSHERS: Chronograph pushers depress with a satisfying click, no stick. All chronograph hands return back and reset to zero with no issue.