Rolex Oyster Speedking 6420

Last updated: June 25, 2025

Brand: 

Model Line:

Production Period:

1953–1962

Caliber/s:

Case Width:

30.5mm

Case Height:

36mm

Lug Width:

17mm

Rolex Oyster Speedking 6420 Description

The Rolex Oyster Speedking ref. 6420 is a mid-20th century manually wound wristwatch that emphasizes compactness, reliability, and classic Rolex durability. Typically produced during the 1950s and early 1960s, it features a 30.5mm stainless steel Oyster case with a smooth bezel, acrylic crystal, and a screw-down crown and caseback for robust water resistance. The watch is powered by the Rolex Caliber 1210, a manual-wind movement well-regarded for its simplicity and long-term dependability. Dial options included silver, white, or black finishes with applied baton or Arabic numerals and pencil-style hands, presenting a clean, legible layout. Its compact dimensions include a lug-to-lug span of approximately 36mm and a lug width of 17mm, making it especially wearable for those seeking a vintage piece with a discreet profile. The 6420 remains a sought-after reference within the Speedking line for its utility and minimalist vintage styling, often collected as an entry-level Rolex with genuine historical character.