I have never seen that dial before, but it is essentially identical to a 1st-generation Nivada Grenchen-Croton CASD with the word "chronograph" instead of "chronomaster", suggesting that it may have a Venus 210 movement. Condition looks good from the photos shown. I would price it a bit lower than similar 1st-gen Nivada-Croton examples, which are reasonably common, so the OP should be able to find plenty of comps.
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