Collection: WATCHES

One of the more commonly discussed details of vintage Rolex © and Tudor © dials is the “ underline ” marking – a small horizontal line which can be found above or below the hands, near the text of certain dials from the mid-1960s. Theories about “underline dials” range from the plausible to the absurd, and although Rolex has yet to provide an official explanation, a general consensus exists (supported by some evidence from measured radiation levels) about the meaning of the underline marking. While it is likely that the underline marking on vintage Rolex © and Tudor © dials is no more than a tiny horizontal line that was used as an internal record to designate the type of radioactive luminous material that had been used on the hour markers.

Needless to say, this particular detail makes the watches that feature it highly valuable for collectors.

WHY UNDERLINE?

One of the most discussed topics regarding vintage Rolex© and Tudor© dials is the " underline " dial. This is a small horizontal line found near the text on some dials dating back to the mid-1960s. Theories regarding "underline dials" range from the plausible to the absurd, and although Rolex has yet to provide an official explanation, there is general consensus on the meaning of this feature. It is likely that a small horizontal line was inserted on vintage Rolex© and Tudor© dials as an internal reference within the manufacturer to indicate the type of radioactive luminous material used on these dials.

It goes without saying that this feature makes the watches equipped with it have a rare collectible value.

Complete article @ craftandtailored.com ©

All rights reserved Craft and Tailored

We don't have any connections with Rolex© and Tudor© brands. Rolex © , Tudor ©, SUBMARINER © and PAN-AM © are trademarks by respective owners.