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All Original CITIZEN Chronograph Challenge Timer "Bullhead" 8110A Flyback

1970s Vintage

Price: $347 through PAYPAL
Kindly send me a message for more pictures, info & shipping quote.

The photos presented are of the actual item for sale. Kindly study them carefully because what you see is what you will get. We try our best to describe watches as accurately as we can that's why we present them visually & literally. In case we missed a few points, you are welcome to ask questions.

Gender: male
Year: 1970 - 1979
Accessories: none
Crystal: glass
Dial Width: 30 mm
Dial Height: 30 mm
Movement: 23 jewels automatic
Case: stainless steel
Case Width: 40 mm without crown
Case Height: 41 mm with lugs
Serial Number on Back: 4.901177K, 00901049, GN-4-5, 67-9011, SSB
Serial Number on Movement: 8110A
Band: stainless steel
Band Width: 18 mm
Band Length: 5 in (measures up to 6.5 in with case)


  • Original CITIZEN Watch with AFTERMARKET hands!
  • FEATURES: Flyback CHRONOGRAPH, Original Aged Dial, Day-Date
  • STAINLESS STEEL: case, back, crowns, clasp & bracelet

  1. Notes on the BEZEL: its black enamel coating has imperfections
  2. Notes on the DIAL: scattered light discoloration spots
  3. Notes on the HOUR MARKERS: brightness of luminous tips has dimmed with age

For sale, is a 1970's CITIZEN Chronograph Challenge Timer 8110A: CITIZEN's first automatic chronograph model.

It has a uniform steel body, compact case & a high beat automatic movement with flyback & hand winding features. Its dial has acquired a dark tone around its edges - a natural gradient finish!

The CITIZEN Challenge Timer is widely known as the CITIZEN Bullhead & is a contemporary of the SEIKO Bullhead. Both are equally saught after by watch collectors.

EXTERNAL CONDITION: This watch is in *EXCELLENT condition (88-92%): Evidence of use is visible to the unaided eye. Scratches are light, but more numerous than "near mint".

INTERNAL CONDITION: This watch is in *EXCELLENT condition (88-92%): Working perfectly, needs no repair or service.

*condition descriptives mainly based on the Timezone Grading System




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