Lindbergh 989.5215 with 5216 dial and bezel?

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Anyone who have seen this combination of steel/gold case (5215) with 18k gold version dial and bezel with green numbers instead of blue (5216)?

It's from 1988 according to Longines. Serial number seems to check out.

Have not seen a single one except this one I grabbed recently.

Edited:
 
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*Obvisously the dial and bezel might have been replaced at one point.

However, I wonder if it could have been originally ordered like this, or changed to owners request later, etc.