Cosmograph Daytona 'Sigma dial', Reference 6263 | A stainless steel chronograph wristwatch with bracelet | Circa 1975 | Important Watches: Part II | 2023 | Sotheby's
Daytona 'Big Red', Reference 6263 | A stainless steel chronograph wristwatch with bracelet | Circa 1975 | Important Watches Online | 2022 | Sotheby's