Omega Cal.491 Automatic 18ct Pink Gold 1958 36mm


100% Genuine & All Original

Fully Restored, Serviced & Guaranteed

A Carefully Owned & Lightly Used Example

Stunning Vintage 18ct Pink Gold Automatic Omega

Beautifully Restored Gold Dial With Sub-Seconds Dial

Very High-Grade Cal.491, 19 Jewels Omega First Full Rotor Automatic Movement

Oversize 36mm, 18ct Pink Gold Case, Excluding the Signed Omega Crown

New Omega Crocodile Leather Strap with Gold Plated Omega Buckle

All in Absolutely Top Grade & Simply Wonderful Condition

VGWL 12 Months’ Written Warranty Included*

VGWL Lifetime Authenticity Guarantee

Presentation Box Included, as Shown

Free Worldwide FedEx Delivery

Free UK Special Delivery

VGW Reference: OM998
Price £3,950


Add to favourites heartRemove from favourites heartADD TO FAVOURITES
DO YOU HAVE A WATCH LIKE THIS TO SELL?Add to favourites heart

Omega Watches

Since the company was founded in 1848, Omega has pioneered a huge range of technical innovations in watchmaking. Britain’s Royal Flying Corps chose Omega watches in 1917 as official timekeepers for its pilots and again in 1940, RAF Pilots watches were supplied by Omega. The 1940s also saw the first tourbillon wristwatch and the first of the famous Seamaster watches, whilst the 1950s and ’60s introduced the legendary Constellation, Speedmaster, Seamaster 300 and Railmaster. Over these years, everyone from John F. Kennedy to Elvis wore Omega watches on official duties. What’s more, in 1962, astronaut Wally Schirra took his Omega Speedmaster into space on NASA’s Mercury Sigma 7 mission, and in 1969 two Omega Speedmasters were the first watches to arrive on the moon, worn by Neil Armstrong and Buzz Aldrin.

In 1932, the watchmaker became the official timekeeper of the Olympics, inaugurating a multimillion-dollar marketing effort. This was recently extended to the 2032 Games.


As everyone familiar with vintage watches knows, watches were much smaller in the olden days … and particularly so compared to the crazy sizes we see in the high street stores today! Typically, during the 1940s and ’50s, gent’s watches started at 30mm in diameter, excluding the crown. The majority were 31 – 33mm, and during the 1960s and 70s, sizes were usually to 33 – 34mm. Vintage watches larger than this are referred to as Oversize and these are highly sought after as the seemingly small difference in diameter, adds significantly to the ‘presence’ of the watch on the wrist. A 1mm increase in diameter, adds over 3mm (3.142) to the circumference of a watch.

Vintage Omega watches of 35-36mm are rare and considered Oversize.  A 36mm diameter watch, as we see here in pink gold, with an automatic movement, is particularly rare.

The Dial

A simply stunning looking watch dial in copper-gold with applied onyx inlaid pink gilt ‘Pencil’ hour indices, matched with the original restored pink gilt ‘Dauphine’ hands. The dial has a vertical grain which catches the light beautifully, as we have tried to demonstrate in the photographs. We think the hour indices are particularly beautiful on this watch.

The overall look is that of a classic gentleman’s Omega dress watch of the late 1950s and early ’60s. This is a perfect watch for evening wear or everyday use, should you so wish.

The dial is signed ‘Omega’ with the applied Omega brand and ‘Swiss Made’, at the very bottom of the dial. The dial also carries the classic cross-hair 1950s subsidiary seconds dial at ‘6’. Just wonderful!

The hands are original and restored and have been kept as they are, rather than replaced. This is to retain their originality, character, and charm.

This is the original dial which has been restored to the highest standards by our dial restorers, who are considered to be the best in the UK.

The Movement

This is an early example of Omega’s Calibre 491, subsidiary seconds dial movement with 19 Jewels and full rotor automatic bi-directional winding. Made in beryllium bronze, this was part of Omega’s second series of in-house automatic movements, produced between 1955 and 1960 and one of the very first non-bumper automatics.

As can be seen, the movement is in incredibly clean condition, and it has obviously been very well maintained.

The movement has been fully overhauled and serviced by our vintage Omega specialist watchmaker.  The watch movement winds, runs and sets smoothly and is keeping excellent time. Following its service, the movement has been calibrated and is currently running arrow straight at +9 seconds/day which is excellent for any watch of this age and has also been verified on our electronic timegrapher instrument. The watch also has an excellent power reserve of 46 hours. We are therefore more than happy to offer 12 months warranty on the movement of this watch*.

The movement is all correctly signed and branded: ‘Omega Watch Co’, ‘Swiss’ and ’19 jewels’ with the Calibre number 491 and the serial number 16665860 which dates the manufacture of the watch to 1958.

*Please note, our 12 months’ warranty is only applicable if the full list price is paid.

The Case

As can be seen from each profile photograph, this watch is immaculate in every respect and so this watch has most definitely seen very careful ownership and light use.

As mentioned above, at 36mm this is an Oversize watch and rarely found in 18ct pink gold. The watch carries its original Omega signed crown.

Please note: It is important to be careful with large cased Omega watches as some have unsigned watch cases. Many larger watches were cased in Argentina during the 1950s when Omega allowed this practice due to difficulties in exporting complete gold cased watches to Argentina, which was a very important market at the time. This watch, however, has a totally genuine and fully signed and branded Omega case, carrying both Omega model and serial numbers. It also carries Geneva Swiss 18ct gold hallmarks.

The case has an interesting profile as the bezel and case-back slightly protrude the width of the main case, providing the case with a classical look.

The case is of three-piece construction with a press-fit case-back which is of full thickness and has never been engraved. This is tight-fitting and presses down with a pleasing and very reassuring pop. The case profile and overall design carry a good deal of 1950s style with nicely crafted lugs, making the case of obvious high quality and sophistication.

The watch has been very well cared for and after a close inspection has simply required a careful clean and a gentle polish to bring it back to its current, almost as new condition. The case, the case-back and bezel are all in superb condition with no marks or scratches visible to the naked eye. Even under high magnification, it is very hard to find any signs of wear, indicating this watch has seen very little use and has had a charmed life.

Inside the case, all is as expected and correctly signed and branded: ‘Omega Watch Co’, ‘Swiss Made’ with the case serial number 193428. It also carries the Omega model reference number 2899 and Swiss Geneva 18ct gold hallmarks.

As ever, our standard advice applies: Vintage watches should be kept clean and dry at all times.

The Strap & Buckle

A new, genuine Omega black Alligator strap, along with a matching Omega gold plated buckle has been  fitted. However, if a different colour or style of strap is preferred, please let us know and we will do our best to oblige free of charge. We carry tan, conker, dark brown and black in stock in plain padded leather, crocodile skin or lizard skin, but can also obtain most types and colours at short notice.

The Box and Papers

Although there are no original papers with this watch, all the numbers and markings on the watch are correct, dating the watch to 1958.

Detailed particulars will be included with our purchase receipt for your interest and security. A separate insurance valuation for the replacement value of this watch will be provided at the time of sale along with our unique ‘Lifetime Authenticity Guarantee’ which states: “If this watch proves to be anything less than 100% genuine, authentic and original, a full refund will be given at any time”.

The presentation box shown in the photographs is included with this watch.

Payment and Delivery

If you would like to pay by bank transfer, we will be pleased to assist you with this and pass on a 3% saving to you. Paying by bank transfer for a 3% saving will not affect your 12 months warranty. Similarly, if you wish to pay by International SWIFT or Bank Wire Transfer we will provide you with our BIC / Swift number and our IBAN number.

Please check the import duties and any taxes your government may apply, these are different for each country and, unfortunately, out of our control.

We understand there may be some ‘loopholes’ that may help you avoid these charges; however, attempting to use these could impact our ongoing ability to serve our growing international customer base.

For those who happen to visit London on occasion, we are, of course, more than happy to store your watch until we can meet you in our offices in Kensington, London, and hand your watch directly to you there.

As with all our watches, this watch will be sold under our 14 days no-quibble sale or return policy.

In Conclusion

Omega watches of this quality and rarity will always remain collectable and values will remain strong, so this watch will make an excellent investment and family heirloom piece. Even though vintage Omega prices have risen markedly of late, we feel excellent examples such as this still remain undervalued. Each year as the world market for fine vintage watches grows ever wider, limited availability means prices are surely destined to climb ever higher! However, the rarest pieces such as this, tend to climb in value faster and remain stronger than the mainstream.

A word about our prices – We always try our hardest to acquire the very highest quality watches we can find, before restoring them to the highest possible standards. We then offer these at the fairest prices we can, taking into account our pre and post-sales care and service. This approach inevitably means we will never be the cheapest, but nor will we be the most expensive. Indeed there are a number of well-known stores in West London which are very successful, charging between two to three times the price you see here. We therefore consider our prices to be fair, given the quality of watches we have to offer.

We are happy to accept PayPal as this is the quickest method of payment. However, if you would wish to pay by bank transfer, we will be pleased to pass on a 3% transaction saving to you. Similarly, if you wish to pay by International SWIFT or International Bank Wire Transfer, we will provide you with our BIC / Swift number and our IBAN number.

Please check the import duties and any taxes your government may apply, these are different for each country and unfortunately out of our control.

We understand there may be some ‘loopholes’ that may help you avoid these charges, however attempting to use these could impact our ongoing ability to serve our growing international customer base.

For those that happen to visit the UK on occasion we are of course more than happy to store your watch until we can meet you in our offices in Kensington, London, and your watch directly to you there.

Please note, we also welcome part exchanges and if you have a watch or small collection for sale, please contact us as we will be happy to discuss.

We will be happy to Service your watch, Repair your watch or Restore your watch, all at ‘sensible’ prices. Please see here.

If you have any questions please call on Landline 0207 727 7095 or if calling from overseas on +44 207 727 7095.

We await your call and we will be happy to answer any questions and offer advice about this or any of our watches listed for sale. If you would like some general advice regarding any aspect of vintage watches, including buying, selling, or collecting vintage watches, we will also be happy to hear from you.

Finally, please enjoy some time spent viewing our other fine vintage gold watches!

Thank you.