• cal. 861 manual winding copper-finished lever movement, 17 jewels, mono-metallic balance, metal dust cover • aged black-to-brown dial, luminescent baton indexes, three engine-turned subsidiary dials for constant seconds, 12-hour and 30-minute registers • large tonneau water-resistant-type case, black bezel calibrated for tachometer scale, two round chronograph pushers in the band, faceted downturned lugs, screw-down back • case, dial and movement signed • with a stainless steel Omega bracelet

The movement is running, however it may require service soon. It is numbered 29604260. The rich brown color of the dial is very attractive. There are some slight losses to the black finish on the bezel tachometer scale, most notably between 65 and 60 The case and bracelet bear scuffs throughout from moderate wear, and the bracelet is slightly stretched. The case is numbered 145022-69ST. The endpieces of the bracelet are stamped 516.
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. All dimensions in catalogue descriptions are approximate. Condition reports may not specify mechanical replacements or imperfections to the movement, case, dial, pendulum, separate base(s) or dome. Watches in water-resistant cases have been opened to examine movements but no warranties are made that the watches are currently water-resistant. Please note that we do not guarantee the authenticity of any individual component parts, such as wheels, hands, crowns, crystals, screws, bracelets and leather bands, since subsequent repairs and restoration work may have resulted in the replacement of original parts. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. In particular, please note it is the purchaser's responsibility to comply with any applicable import and export matters, particularly in relation to lots incorporating materials from endangered species.NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

**Please be advised that bands made of materials derived from endangered or otherwise protected species (i.e. alligator and crocodile) are not sold with the watches and are for display purposes only. We reserve the right to remove these bands prior to shipping.

Important Notice regarding importation into the United States of Rolex watches
Sotheby's cannot arrange for the delivery of Rolex watches to the United States because U.S. laws restricts the import of Rolex watches. The buyer or a designated agent may collect the property in the country of sale."

Accompanied by a numbered Omega guarantee and fitted presentation box.

Omega confirms production of this watch in 1969 a𒅌nd delivery to the retailer on September 9th, 1970. This model, Ref. ST 145.0022, was launched in 1968 with the advent of cal. 861 movement. It was in production until the early 1990s.

The present example is particularly interesting for its aged 'chocolate' dial. Although all dials for Speedꦦmasters were produced in black, extensive sun exposure faded the finish to a rich brown color over the years. Interestingly, one sees this specifically in watches from 1969 and the following year, likely due to a specific technique or finish used by the dial supplier at that time.