Swiss yellow gold oversized skeletonized pocket watch Circa 1980

Gold split seconds chronograph with 30 minute register
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A fine, rare and unusual, oversized Swiss 18 Carat yellow gold skeletonized pocket watch, circa 1980. With a split seconds chronograph and thirty minute register. Made in a limited edition in 1980. An engine-turned bezel, transparent back, co axial start/stop in the crown, olive pusher in the band at 11, sapphire crystals. Engraved gold chapter ring with black baton indexes and radial Roman quarters, outer white chapter ring with black five minute/seconds Arabic numerals and 1/5th second divisions, white subsidiary chapter rings for the seconds and 30 minute register and black skeletonized hands.
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A skeletonized, gilt brass movement and brushed steel, entirely chased and engraved, 23 jewels, straight-line lever escapement, monometallic balance, Breguet balance spring, swan-neck micrometre regulator. Visible brushed steel chronograph work on the back plate. Case and movement signed. This watch is sold with a box and certificate of authenticity.
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Thickness: 23.5 mm
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Diameter: 69 mm
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Signed: Omega  Swiss
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This split-seconds chronograph was made in 1980 for the Summer Olympics held in Los Angeles. It uses a skeletonized vintage movement created for the 1932 Los Angeles Olympic Games, marking Omega´s debut as the official timekeeper for most modern Olympics.