Rolex Oyster Speedking 6431

The Rolex Oyster Speedking ref. 6431 is a mid-century, manually-wound timepiece designed with compact dimensions and the robust characteristics of the Oyster case line. Produced primarily during the 1950s and early 1960s, the 6431 features a stainless steel case measuring 30.5mm in diameter, a smooth bezel, and an acrylic crystal. True to the Oyster name, it includes a screw-down crown and caseback, providing basic water resistance. Powering the watch is the Rolex Caliber 1210, a hand-wound movement without date, offering solid reliability in a simplified package. Dials for the 6431 came in a range of configurations, typically in silver or white with applied baton markers or numerals, and pencil hands. Its lug-to-lug length is about 36mm, and the lug width is 17mm, making it a refined, wearable option for smaller wrists or those seeking vintage proportions. Although less widely collected than larger references, the 6431 is appreciated for its clean design, historic charm, and enduring Rolex build quality.