Important Collectors Watches, Pocket Watches & Clocks
LOT 149
Ref. 2998-2, Color Change Dial Omega, “Speedmaster”, movement 17302930, Ref. CK 2998-2. Made in 1959. Fine and very rare, tonneau-shaped, water-resistant, stainless steel wristwatch with round button chronograph, registers, black bezel with tachometer graduated to 300 UPH and a stainless steel Omega bracelet and deployant clasp.
C. Three body, polished, case back engraved with Speedmaster logo, hesalite crystal, lyre lugs, bezel graduated to 300 UPH. D. Brown, color change with painted luminous baton indexes, outer minute/seconds and 1/5th seconds divisions, subsidiary dials for the seconds, the 12-hour and 30-minute registers, applied steel Omega logo at 12. Luminous steel alpha hands. Luminous white dot chronograph hand. M. Cal. 321, copper-colored, 17 jewels, straight-line lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring, index regulator. Dial, case and movement signed. Diam. 39 mm. Thickness 13 mm. Approx. overall length 145 mm.
Estimate: 150,000 HKD - 200,000 HKD
Estimate: 20,000 USD - 26,000 USD
Estimate: 12,000 EUR - 16,000 EUR
Grading system

C 4-15 D 3-6-01 M 3* AAA
See high definition image
Ref. CK 2998-2
Was launched in 1959, and was the successor to the “Broad Arrow”, reference CK 2915. This reference differed from its predecessor in that the Broad Arrow hands were replaced with Alpha hands, and the steel bezel with one with a black insert. There were two generations of this reference; the first with large dot chronograph hand, the second, as in the present lot, with baton chronograph hand. This reference is sometimes known as the “pre-moon” by collectors.
Cal. 321 with column wheel was created in 1946. It was formerly called “27 CHRO C12 T2” and was used on first generation “moon watches”. The caliber was replaced in 1968 with cam-caliber 861.
Important Collectors Watches, Pocket Watches & Clocks
Sold including buyer's premium:
169,200 HKD