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SKU: 1533

Rolex Datejust 1603 "Sigma Dial", 1964, Men's Vintage Watch





A lovely example of the Rolex Datejust 1603 from circa 1964 featuring a rare "Sigma" dial. The Datejust is one of our favourite Rolex's, a watch more suited to those who prefer understated elegant over in your face bling! This particular Role...
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A lovely example of the Rolex Datejust 1603 from circa 1964 featuring a rare "Sigma" dial. The Datejust is one of our favourite Rolex's, a watch more suited to those who prefer understated elegant over in your face bling!

This particular Rolex Datejust reference 1603 features a Sigma pie pan dial. Pie Pan dials are so called due to the angled outer ring on the dial that makes it resemble an inverted pie pan. It gives the watch a subtle 3D effect that adds an additional point of interest to an already beautiful watch. The sigma reference points to what appears to read O T Swiss T O but in fact reads σ T Swiss T σ. 

"σ" is the lowercase Greek letter for "Sigma", the mark used by a group of Swiss watchmakers in the 1970's who were part of the L’Association pour la Promotion Industrielle de l’Or or APIOR (The Association for the Industrial Promotion of Gold). Their goal was to highlight the use of gold on watches during a period (1970-1974) when the price of gold almost quintupled.

Whilst the trademark for the Sigma mark was registered in August 1971 there are numerous examples of watches known to be original from the late 1960's that featured Sigma dials. The exact year when these started to appear is still debated but to lean on the side of caution we would say it is unlikely to not have stretched back to 1964. The conclusion then is whilst the current dial is an original dial, it was likely fitted at a later date. It should be noted that changing of dials on vintage Rolex's is by no means uncommon and a practice Rolex themselves are well known for doing in the past when watches were sent for service.

Condition wise the dial is in overall excellent condition except a section at the base of the dial (mainly hidden from view) which shows age related marks. The rest of the watch remains in good shape with a case that has not been over polished, a fully serviced calibre 1560 movement and a period Rolex Jubilee bracelet ref. 6251H​ from circa 1968. 

All in all this is a lovely vintage Datejust and one that we're confident will get a significant about of wrist time with its new owner!


We know buying a watch that is decades old can be daunting. That's why in addition to servicing all our watches and offering a 14 day return policy, we also offer a 1 year warranty.

So in the unlikely event your watch misbehaves, just send it back to us and we'll repair and return it to you free of charge.

You can find more details about our Triple Guarantee here.


Year:Circa 1964


Case Size (excluding crown):36mm


Movement Calibre:1560


Strap Material:Metal
Strap/Bracelet Size:Approximately 16cm (leather strap can also be fitted)


Case Condition:Good
Dial Condition:Fair
Movement Condition:Serviced
Strap & Bracelet Condition:Fair

Additional Information

Additional Info:Serviced
Box & Papers:Our Own


Once payment has been received your watch will be shipped within a couple of days. Order before 3pm for UK deliveries or 11am for international deliveries and we'll endeavour to ship your watch the same day. Your watch will be carefully packaged and shipped fully insured with leading global courier companies.

Delivery Times:

  • Delivery within the UK is Free.
  • Delivery within Europe is £30 for watches valued under £10,000. For watches in excess of £10,000 please contact customer service to request a tailored quotation.
  • Delivery for the Rest of the World (excluding the countries listed below) is £50 for watches valued under £10,000. Unfortunately we do not ship watches in excess of £10,000 outside of Europe.

Why Buy From Us?

We know buying a vintage watch can be daunting. From the fear of buying a fake, franken or stolen watch to one that is either overpriced or mechanically unreliable; buying a vintage watch is not easy!

But when you buy from us it's like buying from a friend. We offer friendly & transparent advice and never pressure sell. Not only that but every watch is:

  • Serviced & Authenticated

  • Comes with 1 year Warranty

  • 14 Day Return Period

  • Shipped Same Day*

Very good experience with Time Rediscovered. Excellent service and very quick. Nick answered my questions promptly and swapped a strap for me for no extra charge. The watch is in excellent condition. Very happy to recommend Time Rediscovered.

M. Jones

Expert advice, no pressure and no-hard-sell that I have experienced from others. I would certainly buy from again. Product beautifully packaged and promptly dispatched. First class service. Well done

Danny C.

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Thomas A.

Fantastic service, speedy responses, helpful and super fast deloneny I had been looking for a vintage watch for a while and had trouble trusting online sources but they helped ease any concerns. Cannot recommend more! Thanks Time Rediscovered.

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