1973 Rolex Datejust (Ref. 1603) Blue 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 1973 Datejust Ref. 1603 retains its original blue "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 # RLXDJ1603-73/3
Brand Rolex
Style Datejust
Model 1603
Serial 33XXXXX
Size Men's
Material Stainless Steel
Dial Blue Sigma
Millimeters 36
Bracelet Rolex 6251H Jubilee Bracelet W/ 55 End Pieces


The excellent case retains thick and symmetrical lugs that display light signs of honest use. The stainless steel engine turned bezel is unpolished with honest signs of use. The original Rolex 6251H rolled-link Jubilee bracelet with 55 end pieces retains 23 links that show normal stretch for the style and age of the bracelet and will fit up to an 8-inch wrist.


The blue Sigma "pie-pan" sunburst dial features a handsome vintage aesthetic and is in overall great vintage condition. There are some hairline marks on the dial that are noticeable under magnification, and the dial features a common gold color change around the lume plots from age. The tritium lume plots have taken on a vivid yellow coloration and exhibit no degradation when inspected under U.V. light. The original tritium hands match the dial nicely, under U.V. light inspection the minute hand does exhibit significant lume degradation and the hour hand shows minor lume degradation. The metallic date wheel is original with open 6's and 9's.


None. The watch is recently serviced and is keeping time perfectly, backed by a 1-year warranty on accurate timekeeping.