Day-Date ref. 1803 👌 Silver Linen Dial 👏 “SIGMA” mark 😜 Year 1973 👈 In Gold 750 🤩 Collection Genève 😀
Rare Rolex “SIGMA” Mark 😜
The symbol chosen was the Greek letter Sigma: σ. Sigma dials can generally be found on Rolex watches dating from the early 1970s until the latter part of the decade. 😜 The Sigma mark certifies that the watches are of Swiss origin of high standards and quality, and contain solid gold … 🤩