The Longines Avigation Watch Type A-7 1935 explained.

Longines Avigation Watch Type A-7 1935. Introduced in 2016, this single push-piece chronograph is a remake of the original that was produced in the 1930s. Recommended retail price: SGD5,170 (at the time of writing). Photo: © TANG Portfolio / TimeWerke. Elfa / Timmy.

Why is the Longines Avigation Watch Type A7 so-named? Why is the term “avigation” used? Is it a misspelling of the word navigation?

Well, it isn’t a typo or a misspelled word and it is understandable if you do not know what it means.

Perhaps those who were in the military, the US Air Corps of the US Army in particular, or Longines-Wittnauer during the 1930s, would be more familiar with the “avigation” term.

“Avigation” is actually an acronym invented by Longines-Wittnauer for its air navigation watches. It is derived from the words “Aviation” and “Navigation”, according to Michele Galizia in the book Military Wristwatches, adding that such watches were used by American Air Force navigators for astronomic navigation or “course determination through the stars”.

What is the story behind Longines-Wittnauer?

It is said that the A. Wittnauer Co became the exclusive sales agent for Longines in 1880, and this relationship lasted for 114 years till 1994. From what we understand, the distribution was thereafter taken back by the Swatch Group.

In 1936, the Wittnauer family sold the company and it was renamed Longines-Wittnauer. The Wittnauer company was acquired by Bulova in 2001, reportedly for US$11.6 million.

For the Longines Avigation Watch Type A-7 1935, a contemporary remake of such “avigation” watches and launched in 2016, the “1935” comes into the picture because such functional timekeepers were made during this time.

Such “avigation” watches were probably better known as the Type A-7 – a classification system for Air Force chronograph wristwatches.

In the past, such “avigation” watches were better known as the Type A-7 – a classification system for Air Force chronograph wristwatches. Photo: © Longines

Longines Avigation Watch Type A-7 1935
Introduced in 2016
Technical features:
• Calibre L788.2 (ETA A08.L11) automatic movement, 13¼-lignes
• 28,800 vibrations per hour
• 27 jewels
• 54-hour power reserve
• Single push-piece chronograph (integrated with the crown)
• Date display
• Sapphire crystal with several layers of anti-reflective treatment
• White lacquered polished dial, angled at 40-degrees to the right, 12 honey-coloured Arabic numerals
• Blued steel, honey-coloured varnish hour and minute hands, blued steel small seconds hand
• 41mm diameter case in stainless steel
• Water-resistant to 3 bar (30m)
• Brown alligator leather strap

Another Longines article that may be of interest is:
i. Understanding and Appreciating the Longines Aviation Watch Type A-7 1935

Casio G-Shock “Torture Test”: The G-Shock GA-700 smashed by “high performance cars”

The crash test dummies did not survive the head-on collisions by these high performance cars. How did the Casio G-Shock GA-700 fare? Photo: © TANG Portfolio / TimeWerke. Elfa / Timmy.

Will Casio’s G-Shock GA-700 survive after being hit by “high performance cars”, namely the Audi TT Coupe, BMW X4 and Porsche 911 Carrera S?

Interestingly, we first used “crash test dummies” and what was observed did not bode well for what was in store for the Casio G-Shock GA-700.

When crash test dummies were first used, the initial observations led us to believe that these were potentially destructive tests for the Casio G-Shock GA-700. Photo: © TANG Portfolio / TimeWerke. Elfa / Timmy.

Let’s take a look at the four videos below which are also found at TimeWerke Videos on YouTube:


Video Source: YouTube, TimeWerke Videos


Video Source: YouTube, TimeWerke Videos


Video Source: YouTube, TimeWerke Videos


Video Source: YouTube, TimeWerke Videos

What is the point in showing all these toy car smash-ups with the Casio G-Shock GA-700?

Granted that these are toy cars but the aim is to demonstrate that Casio G-Shocks are not only tough but are essentially child-proof timepieces.

None of the die-cast metal toy cars even managed to damage the mineral glass of the Casio G-Shock GA-700 despite the multiple “high-speed” collisions.

Note: A die-cast car toy is one that is typically a collectible with its body produced by using a mould filled with molten lead or zinc alloy. These metal toys are then assembled with other components that can be made of either rubber, plastic or metal machined parts.