OMEGA | SPEEDMASTER ST 186.004 'ALASKA IV', A STAINLESS STEEL QUARTZ DIGITAL SPLIT CHRONOGRAPH WRISTWATCH, MADE IN 1978

The present lot is another example of the Alaska IV prototype made for NASA in the late 1970s (see lot 18). The Alaska IV digital Speedmasters carried over similar design motifs from their mechanical counterparts with the lyre lugs and black bezel, and adding the functionality of a calendar and split seconds.

This example is one of the later batches of the prototype which does not feature a hand engraved number to the back.