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I am not sure about what reference this watch should be.
It has half of the dial as 2279, but subregisters are different - like newer models from the 1950s.
And it doesn't look redial, because these subregisters are sunken. So, can't have 2279 or 2451 as basis.
The case is 2279-4.
The hands are like 2907. Or not.
And the movement is from 1958.
馃榾
Love the movement!