ROLEX | BETA-21, REFERENCE 5100, A HEAVY AND POSSIBLY UNIQUE WHITE GOLD AND DIAMOND-SET WRISTWATCH WITH DATE AND BRACELET, CIRCA 1970 | 勞力士 | "Beta-21 型號5100 獨特白金鑲鑽石鏈帶腕錶，備日期顯示，機芯編號7314，錶殼編號78，約1970年製"
BETA-21, REFERENCE 5100
A HEAVY AND POSSIBLY UNIQUE WHITE GOLD AND DIAMOND-SET WRISTWATCH WITH DATE AND BRACELET, CIRCA 1970
Calibre: cal. RE10 quartz, 13 jewels
Movement number: 7314
Case: 18k white gold, snap on case back
Case number: 78
Closure: 18k white gold Rolex bracelet and folding clasp
Size: 40.5 mm diameter, bracelet circumference approximately 180 mm
Signed: case, dial and movement
The movement is in working condition at the time of cataloguing. The dial is in excellent condition. The lume at 9 o'clock is partially lacking. The case with light surface wear that can be seen with the naked eye but this is consistent with the age of such a watch. There is a very crisp hallmark to the band. The case still with original facets and proportions. There is minor surface wear to the case back caused by the bracelet. The engravings to the case back is very crisp. Overall an extremely striking watch that is very chunky and is extremely heavy on the wrist.
Please note that the movement has not been tested for the accuracy of time and may need a service at the buyer's expense. Sotheby's does not guarantee the future working of the movement and we do not guarantee the authenticity of any individual component parts since subsequent repairs and restoration work may have resulted in the replacement of original parts.
You are advised that watch straps or bands made of materials derived from endangered or otherwise protected species (i.e. alligator or crocodile) are not sold with the watch and we reserve the right to remove these straps or bands prior to shipping. Furthermore, the watch may not come with its original manufacturers strap or band.
Prospective bidders should review the Conditions of Business, Authenticity Guarantee, the Guide for Prospective Buyers, and any Important Notice in the sale catalogue.
"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."
A historical invention in 1969, the present example is incorporated with the beta-21 movement, one of the first produced Swiss electroquartz movements. Accurate to 5 seconds per month, it left a groundbreaking impact on watchmaking history, leading the market to a favour of quartz watches which eventually caused the quartz crisis. Experimenting on the Beta-21, the reference 5100 was released in 1970 as the first Rolex quartz watch. Offering a hefty white gold case, the present example retains the traditional look of a Rolex wristwatch, with never before seen grey dial enhanced with diamond-set indexes. Limited to a production time of two years however, the present reference is extremely sought after. No more than a handful of white gold examples have been seen on the market and this is the first time an example with diamond indexes and grey dial has been seen.