Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 1159
way. * * * The roller jewel of a lever watch does not require tobe oiled. The friction at this point is very slight andmore nearly resembles the quick, sharp blow of a hammerthan the constant rubbing of two rough surfaces in con-itact. When oil is applied, not only is a measure of ad-hesion… … WHY, SIR, BUT EVEN IN SWITZERLANDWE HAVE NOT MANY MEN WHO CANMAKE A WATCH LIKE THAT This was the exclamation of a prominent Swiss watch manu-facturer who hacj examinee! the 1 6 size tourbiUon, with springdetent (chronometer) escapement, going barrel with up anddown indicator and glass dial, which…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
