77 Longines An unusual oversized and historically important Longines Wittnauer reference 4356 in stainless steel pilot's wristwatch with sweep centre seconds and Weems Second Setting System

Estimate: € 15.000 –⁠ 30.000

• Model Weems
• Year 1947
• Reference 4356
• Case Material stainless steel
• Case Number 21123-15
• Bracelet Material leather strap
• Movement 37.9
• Movement Number 5942315
• Dimension 47mm

Lieutenant Philip Van Horn Weems was a U.S. Navy commander born in Tennessee in 1889 and during his career serving his country at sea, he was the inventor of several navigational innovations. One of its best-known inventions is the Second Setting System, designed to help aviators plot their courses more accurately. Thanks to him it can be said that a new kind of watchmaking was born: Weems deducted that the difficulty in setting the watch came from the fact that, at the time, it was almost impossible to set the second hand exactly. The present model features Weems’ second setting system, with an inner rotating dial to improve accuracy in timing and synchronicity, vital for aviation and on seafaring expeditions which was subsequently patented by Longines in 1935.
This oversized watch in stainless steel might be a bit uncomfortable nowadays given the 47 mm of diameter but has to be considered that this watch has to be worn over an aviator suit and handled with very bulky gloves. Givign this, there's another important and distinctive characteristic of the “Weems” and is the large ball-sized winding crown, allowing a pilot to rewind the movement without taking off the gloves. The present watch is really well-preserved silver hinged cuvette still very clean and reflective. The two-tone dial with white enamel chapter ring and silvered rotating inner disc to set the time in seconds shows Breguet numerals blued steel moon hands. A true “time capsule” piece, its pristine state of preservation makes it a trophy watch for the connoisseur.