Dubbed "The World's Most Accurate Wristwatch", you are looking at a very rare piece of History! I am only the second owner!

Omega,“Constellation, Marine Chronometer, Megaquartz, f2,4 MHz”, No. 37057535, Ref. ST 198.0074 / 398.0836. Sold on Jun 2, 1977. Very fine, rare, and exceptionally accurate, large, rectangular, dead center seconds, water-resistant (but I cannot guarantee water resistance for a vintage like this), stainless steel gentleman`s wristwatch with date, independent hour adjustment and 14K gold bezel and an integral Omega bracelet with deployant clasp.

Comes with ORIGINAL boxes, ORIGINAL warranty certificate and ORIGINAL chronometer certificate from the University of Besancon. Also the service cards to show that this watch was serviced in 1980, 1982, 1984 and 1997. Rare indeed! Compare with the one sold at Omegamania on 15 April 2007, No. 37057175 (as opposed to my 37057535), which was sold for CHF 7670! (about USD6,900!!!). I am offering this at US$4,200 plus shipping.

Brand: Omega
Model: Constellation, Marine Chronometer, Megaquartz, f2,4 MHz
Serial number: 37057535
Movement: Caliber 1511
Date: Quickset and switches at correct time
Case: Two-body, polished and brushed, 14K gold bezel secured with four screws, back secured by four screws. The case was polished by its original owner (I can get it professionally buffed for an additional US$100). A few dings as shown in the pictures. Nothing major. Rated at 80%.
Strap: Original Omega 1209/202 stainless steel bracelet with 15 links.
Hands: All original and excellent condition
Dial: Excellent condition (no spotting)
Bezel: 14K gold secured by 4 small screws - excellent condition
Crown: Original signed crown
Crystal: Sapphire, excellent condition
Size: 32.5 x 48.8 mm. Thickness 12.4 mm - This is a BIG watch!