National Geographic : 1948 May
ONLY AN HAS THE DURAPOWER MAINSPRING* MADE OF "ELGILOY" METAL Eliminates 99% of watch repairs due to steel mainspringfailures! LOOK FOR THIS SYMBOL ON THEDIAL ELGIN e=5r~CeiQ~~wLi6~ The powerhouse of a watch is the main spring. And, there in that part, Elgin offers a tremendous advantage. Elgin's DuraPower Mainspring com pletely overcomes rust-the commonest cause of mainspring breakage. Retains its "springiness" indefinitely for greater accuracy through the years. Actually elimi nates 99% of watch repairsdue to steel main springfailures! This exclusive DuraPower Mainspring *Patent pending is in all new Elgins at no extra cost. Lord andL You know of Elgin's famed timed-to- firom $r( the-stars accuracy. You can see Elgin's Other Elgi. brilliantly original styling. And you can All prices appreciate the importance of having a NowtoE/g watch that's made in America, adjusted accuracy th here both to temperatures and positions. springadds Now the "dp" symbol of Dura Power on the dial of every Elgin is a final assurance that you will be happier with an Elgin Watch. ady E/gins are priced O0 to $5000. Elgin om $47.50 to $100.00. ns as low as $29.75. include Federal Tax. in'sfamous star-timed e DuraPower Main a permanency oftime keeping performance never before possible in any watch. Elgin observatory time is the official time of United Air Lines.