The World’s first production Hour–angle timepiece
Longines experienced a multiple decade zenith in the first half of the twentieth century and ...
From Sky to Space – The Moon Man & his Mate
“Every vision is a joke until the first man accomplishes it; once realized, it becomes ...
Lindbergh’s Elusive Special Flight Calculator…
Albert Wittnauer agreed to stock a minimum of 17,000 Longines watches in America by 1879[1] ...
The Transitional No Crown Guard Weems
Longines first developed the 18.69 pocket watch calibre in 1895, and like their other movements ...
Admiral Byrd’s Antarctic Expedition Weems
Byrd’s Longines Weems speaks of a time when explorers, aviators and aviatrix relied upon them ...
Sidereal or Star time….twinkle, twinkle…
Lindbergh stated, “I consider celestial navigation necessary to future aviation”.[1] The “Lindbergh Boom”[2] that followed ...
The Ultimate Stars – Sidereal timepieces
Weems stated, “It is perhaps fortunate that timepieces were developed before radio, or else extremely ...
Longines Bezels Turn First & Second
It has now well accepted that the generation of fifties turning dive bezels heralded from ...
US Patent 2008734 covers all, or does it?
The “Spirit and Scope of my invention” are the words Philip Van Horn Weems used ...