
Wristwatches · Wristwatch
Rolex Red Datejust 18K YG (Ref. 6305 1) "Ovettone" W/ Roulette Date Wheel, 1955
- Maker / attribution
- Rolex (maker)
- Date
- 1955
- Historical period
- Modern Mechanical Horology (1945 – 1969)
- Country of origin
- Switzerland
- Object type
- Wristwatch
- Dimensions
- Case 36 mm
- Stock no.
- RLXDJ63051YG
- Credit line
- Dealer listing, Craft & Tailored (RLXDJ63051YG)
- Catalogue title (original)
- 1955 Rolex Red Datejust 18K YG (Ref. 6305 1) "Ovettone" W/ Roulette Date Wheel (English)
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Record summary
Catalogued by Craft & Tailored (dealer), Los Angeles (stock number RLXDJ63051YG), this is a wristwatch by Rolex, made in Switzerland, dated 1955. The Atlas places it in the Modern Mechanical Horology period (1945 – 1969) of its Wristwatches collection. Recorded dimensions: Case 36 mm. The record is illustrated with 6 photographs.
Assembled from the source record's structured fields. Dates and attributions are given as the source states them; where a field is missing the Atlas leaves it blank rather than estimating.
Catalogue description
Dealer description — Craft & Tailored
The Rolex Datejust is one of the most iconic and beloved watches made by Rolex. Launched in 1945, it remains a timeless classic and is instantly recognizable as an item of superior quality and functional design. After Rolex introduced the Datejust in 1945, the brand entered a massive period of expansion that continued through the 1950s as they introduced model after model of now iconic timepieces, most of which still exist in some form today. Though this explosion in manufacturing resulted in impressive growth for the brand, it was also an extremely experimental time for Rolex as well which resulted in rapidly evolving designs. For each new improvement or design update Rolex introduced within a model, there was a new reference created to signify that change, thus resulting in numerous references created for a single model in a small timeframe with extremely small production periods. Making each new reference rare onto itself and for a specific reason. The earlier models of the Rolex Datejust weren't actually signed "Datejust" on the dials until the 1950s, and these early signed models were done so with special red text that was phased out after only a few years. This is synonymous with most of the new model introductions from Rolex in this era, such as the Red Submariner ref. 1680, and Double Red Sea-Dweller ref. 1665. This red detail, however small, adds an incredible amount of exclusivity and character to the Datejust dials. "Ovettone" roughly translates from Italian as 'Big Egg' and is a term coined by collectors to represent early 36mm models that feature round case backs, more commonly seen in the smaller Bubble-Back Rolex model range, which is why "Ovettones" are also commonly referred to as "Big Bubble-Backs". SPECS Stock # RLXDJ63051YG Brand Rolex Style Datejust Model 6305 1 Serial 99XXX Size Men's Material 18K Yellow Gold Dial Champagne "Aged" Millimeters 36 Bracelet 2pc Handmade Leather Strap W/ Rolex 14K YG Tang Buckle CASE & BRACELET The 18K yellow gold case exceptional condition, especially when considering the age of the watch, showing very full and symmetrical lugs that show minimal signs of polishing and nominal signs of use. The original hallmark on the back of the case is fully present, crisp, and intact. The 18K yellow gold bezel also retains its original design integrity with minimal evidence of previous polishing present and crisp edges throughout. The case retains its original "Rolex Oyster" Brevet screw-down crown. The watch comes supplied on a 2pc handmade leather strap with an early style Rolex 14K yellow gold tang buckle. DIAL & HANDS The original, early, and remarkably well-preserved "pie-pan" dial is in incredible condition, showing no damage and only nominal elements of age that are virtually invisible to the naked eye while the original aesthetic charisma of the watch remains fully intact. The golden-beige radium lume plots around the dial and within the 6 and 9 o'clock markers all remain fully intact with no degradation present under UV light inspection. The original yellow gold alpha hands match the dial lume perfectly and exhibit no degradation under UV light inspection. The alternating red and black "roulette" date wheel is original with 'open' 6's and 9's. ACCESSORIES None. The watch is keeping time, but the service history is unknown. A movement service can be provided upon request.
Historical context
Modern Mechanical Horology (1945 – 1969)
Tool watches for divers, pilots and astronauts; electric watches anticipate the electronic age.
The classic era of the mechanical wristwatch: dive watches, chronographs for motor racing and space flight, GMT watches for jet travel, slim dress watches, automatic calendars, and the rise of Japanese manufacturers alongside Swiss, American, German and Soviet industries.
Read the period in the timelineMore wristwatches from this periodEarlier: Golden Age of Mechanical Watchmaking
Atlas type guide
Calendar, moon-phase and perpetual calendar watches
Calendar complications range from a simple date to the perpetual calendar, which automatically allows for months of different lengths and leap years until 2100. Pocket watches with perpetual calendars were made in the eighteenth and nineteenth centuries; Patek Philippe made the first perpetual calendar wristwatch in 1925, and series production followed in 1941. The annual calendar (Patek Philippe, 1996) needs correction only once a year.
Moon-phase displays use a disc with two moons and 59 teeth advanced daily, approximating the 29.5-day lunation; more precise trains reduce the error to one day in over a century.
What to look for
- Apertures or subsidiary dials for day, date, month and leap year.
- Moon disc under a 'bosom' shaped aperture.
- Recessed correctors on the case band for setting the calendar.
Dating clues
- Triple-date wristwatches: popular c. 1940–1955.
- Perpetual calendar wristwatches: from 1925 (unique) and 1941 (series).
General guidance written by the Atlas editors about this kind of object. It is not a statement about this particular piece; for that, rely on the source record above and on physical examination.
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