Rolex 710

The Rolex Caliber 710 is a durable, manual-wind movement from the same family as the Caliber 700, utilized by Rolex from the 1940s to the mid-1960s. Like its sibling, it was based on a Fontainemelon (FHF) ebauche that Rolex would finish and regulate to its own specifications, often including the “Superbalance” for greater accuracy. The key distinction of the Caliber 710 is its use of a central sweep-seconds hand. This required additional gearing, making the movement slightly taller than the sub-second Caliber 700, and represented a more modern style of time display. It was a reliable engine for many Rolex “Precision” and non-automatic Oyster models, offering an alternative to the more traditional sub-dial layout and demonstrating Rolex’s ability to adapt and refine proven ebauches for their diverse product line.