I guarantee you that bezel and dial are blue. I wouldn't touch that piece.
The reference is 2551.80.00
View attachment 1162338
There is a black version that came out later than the tritium version and its reference is 212.30.41.61.01.001. The difference is it is quartz. Notice the absence of "chronometer", red dial text, and black background date wheel.
View attachment 1162339
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