1973 Rolex Datejust (Ref. 1603) Grey Sigma Dial

The Rolex Datejust is one of the most iconic and most beloved Rolex watches ever made, even though the Datejust was launched in 1945 it has remained a timeless classic and is instantly recognizable as an item of refined quality and functional design. The Datejust can be worn just as easily with a suit as it can be with jeans and a tee-shirt. The DateJust would make a great start for a new vintage collector, or be a great addition to an expanding collection.

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This specific 1973 Datejust Ref. 1603 retains its original grey "Pie Pan" Sigma dial which is sought after among collectors. A Sigma dial is a Rolex dial named for the letters printed at the bottom of the dial at the 6 o'clock position. Most Rolex dials are commonly marked with “T Swiss T,” under the 6 o'clock marker, however, a Sigma dial is marked “σ T SWISS T σ.” This signifies the use of gold components within the dial.

This piece would make a great start for a new vintage collector, or be a great addition to an expanding collection. We love the early Rolex Datejust for its simplicity and its classic sophistication.


Stock # RLXDJ1603-73/2
Brand Rolex
Style Datejust
Model 1603
Serial 30XXXXX
Size Men's
Material Stainless Steel
Dial Grey Sigma Dial
Millimeters 36
Bracelet Rolex 


The lightly polished case retains full and symmetrical lugs that show light signs of previous use. The stainless steel engine turned bezel is in excellent unpolished condition with lights signs of honest use. The original Rolex 7836 folded-link Oyster bracelet with 258 end pieces is stamped 3/71 and retains 11 links and shows light stretch from use.


The well-preserved and sought-after grey "Sigma" dial is in excellent condition with no age or blemished present. The tritium lume plots show a strong yellow patina and all remain intact, though there is some light degradation throughout when inspected under U.V. light. The original tritium hands have aged slightly darker than the dial, which is common, and exhibit no degradation when inspected under U.V. light. The metallic date wheel is original with open 6's and 9's. 


None. The watch is keeping time, previous service history is unknown.