Rolex Datejust Reference 1601 Sigma Dial – Bulang and Sons
Daytona, 'Sigma Dial' reference 6263 Montre bracelet en acier avec chronographe | Stainless steel chronograph wristwatch with bracelet Vers 1978 | Circa 1978 | Fine Watches | 2022 | Sotheby's
Sold at Auction: ROLEX Daytona "Sigma Dial", ref. 6263/6262, n° 2874331
Rolex Sigma (grey sigma dial) dial for OP Datejust 36 mm 1600 | 1601 | – jmpwatches.com
1977 Rolex 1601 Datejust Stainless Steel Blue Sigma Dial 36mm Watch Ex – Olde Towne Jewelers