- Movement: automatic Lemania 5100 chronograph with column-wheel switching.
- Case: ref# 7177, stainless-steel, ~41mm Ø.
- This watch, designed by Porsche Design and manufactured by Orfina, saw service (both official and unofficial) with a number of military organizations around the world; a comprehensive analysis of the myriad variants can be found here.
- There is a sister ref# 7176 that replaces the military 12-hour rehaut with a tachymetric scale.
- This particular example features a distinctive PVD finish -- the 7176/77 was the first watch to feature an all-black exterior finish.
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