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Home > Guide > Chronographs > 62.Autavia > A.Manual--Screw-Back Case > Screw-Back (1st Execution Case--1st Execution Dial)

The earliest Autavias, with the first execution case (screw-back) and first execution dial, are easily recognized by the large registers. The first execution case / first execution dial is the only version of the Autavia with the larger regsiters. There are three versions of the first exection case / first execution dial Autavias:

Reference 2446 (three registers)
Reference 3646 (two registers) -- 30 minute recorder
Reference 3646 (two registers) -- 45 minute recorder.

Reference 2446 (Three Register)

Reference 3646 (Two Register)

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