Notes: Ref. 4357 is a 1950s vintage Rolex model with a case diameter of 35mm. The steel case has a slim bezel which maximises the surface area devoted to the dial, thereby greatly increasing the visual impact of the watch. It features applied faceted steel indexes and dauphine hands. Manually wound, the movement is a Rolex calibre 700 with 17 jewels and incorporates the patented Rolex Superbalance.

Mechanism: The 'Precision' series of the Superbalance represents the 3rd generation of Hunter movements made by Aegler for Rolex. They replaced the earlier Superbalance series and use a much simplified balance wheel. They also moved the Hunter from 15 jewels to 17 jewels. With the introduction of this 3rd Hunter, Rolex started referring to the mechanism as the 700 instead of Hunter 10 1/2, although the mechanism is still stamped 'Rolex Patent 10 1/2 H' and typically (but not always) signed 'Precision' on the main plate. I guess Rolex owned the patent even though Aegler made the watches.

The 710 is closely related to the Aegler 700. The primary difference is the position of the second hand. The 700 is "sub second", whereas the 710 is "center second".