Omega Second Generation Broad Arrow Omega, 'Speedmaster', No. 15997985, Ref. 2915-2. Made in 1958. Very fine and very rare, water-resistant, stainless steel wristwatch with round button chronograph, registers and tachometer. | Important Modern & Vintage Timepieces | New York, 15th September 2010
Omega Second Generation Broad Arrow Omega, ?Speedmaster?, No. 15997985, Ref. 2915-2. Made in 1958. Very fine and very rare, water-resistant, stainless steel wristwatch with round button chronograph, registers and tachometer., USD 13,000 - 18,000 EUR 10,000 - 14,000 / CHF 14,000 - 20,000Sold: USD 17,500 C. Three-body, polished and brushed, tachometer graduation to 300 UPH on the steel bezel, screwed-down case back. D. Black with luminous painted baton indexes, outer minute/seconds and 1/5th seconds divisions, subsidiary dials for the seconds, the 12-hour and 30-minute registers. Luminous steel broad arrow hands. M. Cal. 321, copper-colored, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self compensating Breguet balance spring. Dial, case and movement signed. Diam. 39 mm. Thickness 13 mm. Property of a Japanese Collector
