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 ...
An Accurate Timepiece for the Air Navigation age
Whilst Santos-Dumont had flown with his famous Cartier watch in 1906, there was a limited ...
Harold Gatty – Round the World Navigator
After Howard Hughes’ world circling flight of 1938, he proclaimed to Harold Gatty, pioneer, ‘Greetings ...
The Hour-angle watch – a “Lindbergh”
The speed of the plane brought complex new navigational challenges. When traveling at 200 miles ...