The Longines A-7 Avigation: American Air Power
In the beginning of flight, the military pilot’s watch was an instrument of execution and accuracy. The US military had exacting prerequisites for their Type A watches, and in 1934, indicated an airplane navigational chronograph from which determines the combination avigation: avionics and navigation.
First gave between the World Wars, the US Army Air Corps Avigation Type A-7 Hack Watch was a pocket watch chronograph adjusted for a wristwatch, making it a huge accessory – ideal for navigation. Think of it as an American comparable to the German B-Uhr Fliegers – just with a chronograph – or the French Type 20 ( see our article about Type 20 watches here ).
The American Type A-7 were provided by Gallet (white dial), Meylon and Longines. Vintage A-7s are uncommon, anyway Longines has made it simple to claim one by reissuing this legacy piece. The present day Avigation Type A-7 intently takes after its archetype (see photographs beneath). Common for a military watch, the dial is dark and the numerals are white, supporting perceivability. There is a little seconds dial with date opening and a brief chronograph counter sub dial.
The 49mm case reviews the days when these watches were worn over a leather flight coat, and the 50 degree calculated dial, similar as a driver’s watch, permits the pilot to wear the watch within the wrist. Worn thusly, the pilot handily saw the watch without eliminating his hands from the controls and added an additional dial to the forefront of his instrument board. The cutting edge watch incorporates a date capacity and tachymeter, however otherwise remaining parts exactly as expected even with the numeral font.
Here are two old models – vintage Longines A-7 is feeling the loss of the crown (source: Military Watch Resource) and engraved case back of another vintage Longines A-7.
The chronograph complication made the A-7 an important navigational guide, and the enhanced one gets a huge redesign while holding its mono-pusher personality. The fluted crown works the chronograph elements of start, pause and reset. Dissimilar to later chronograph models with two fastens, the A-7 has one catch to control all the chronograph functions.
When a pilot is wearing thick gloves, the advantage of just one catch becomes self-evident. Consistent with Longines’ chronograph legacy, the L788.2 development, planned explicitly for Longines, highlights a section wheel chronograph. The pivoted back opens to show the development, and the segment wheel is effectively obvious through the sapphire precious stone. 54 Hours of force hold mean this watch stays prepared to navigate.
At $4900 USD, the A-7 Avigation is less expensive than the greater part of its memorable partners, and the individual who will probably purchase this watch definitely understands what a Type A-7 watch is. The gatherer, avionics aficionado or military buff may appreciate having the conveniences of ongoing innovation just as finding a deal by purchasing new.
In terms of saving history and American military flying history specifically, this watch is a welcome chance, however to the more noteworthy public, it will probably stay a puzzle, similar as its predecessor.
The Longines Avigation Watch Type A-7
Technical determinations – Reference number: L2.779.4.53.x
- Calibre L788.2 (ETA A08.L11) – Self-winding mechanical development with single push-piece and segment wheel chronograph mechanism
- 13¼ lines, 27 gems, 28’800 vibrations each hour, 54-hour power reserve
- Functions: Hours, minutes, seconds, date, tachymeter, chronograph
- Round case, tempered steel, Ø 49 mm, chronograph pusher integrated into the crown, pivoted case back (engraved and numbered) on top of a sapphire glass case back
- Dial: Black, calculated at 50° to the right, 10 white Arabic numerals, white minute circle, white tachymeter scale
- Small second at 6 o’clock, 30-minute counter at 12 o’clock, date opening at 6 o’clock
- Hands: Rhodium-plated Breguet style hands for quite a long time and minutes
Please visit the Longines site for more information.
This article is composed by Max Reddick, contributing author for Monochrome Watches .