Zodiac Aeronaut GMT First Edition

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The History

The Zodiac watch company was founded by Ariste Calame in blah blah blah… Let’s skip over the boring early days and talk about Zodiac watches and the Zodiac killer. The Zodiac killer terrorized the public from the late 1960s until the early 1970s with a death count that some put as high as 28. He captivated the public by his ability to use the media to catapult his fame with the publishing of his famous ciphers and of course a catchy name.  What you might not know is that this famous serial killer most likely took his name from the Zodiac watch brand. In fact, it wasn’t just the name that the killer took but it was also the Zodiac watch logo that he would use to sign his letters. Now, it isn’t known why the serial killer decided to use this particular name and logo, but one of the key suspects in the case was known to have owned a Zodiac watch.

zodiac logo
The Zodiac watch logo on the left and the Zodiac killers signature on the right

The Reference

When Zodiac released this watch in 1962 they did something that no modern watch brand would do. They release this watch side by side with a nearly identical model with the same case, movement, features, and more, but just with a different name. Rather than questioning Zodiac’s marketing decisions, we will focus on the watch itself. The Aeronaut reference 752-925 was issued in two editions. The first edition, from which this watch comes, is distinguished from the second edition by two important changes. The first is the pointed hands, which would be replaced by baton hands on the second edition, and the second change is the addition of lume plots on the inside of the indexes on the second edition.


The Case and Bracelet

The case condition of this watch varies significantly between the case itself and the bezel so we will talk about them each separately. The 35mm stainless steel case is in very good condition. It shows signs of a previous polish but retains crisp lines and bevels. Additionally, the crown, crystal, and caseback are correct and presumed original. Although original to the watch, the crown condition is only fair with significant pitting. One might ask how the bezel could differ in condition so much from the case and the answer is different materials. The case itself is solid stainless steel whereas the bezel is a plated brass piece. As the plating wears out from use the brass becomes exposed and is much more susceptible to corrosion than the steel.


The Dial and Hands

The black dial and hands are in good to very good condition. All of the components are correct and presumed original. The lume, only present on the hands, has accumulated some dirt but is all present and the printing on the dial is all sharp and clear. There are some pockmarks on the dial which are most likely a result of the gloss dial material breaking down over time.


The Movement

This watch features an automatic Zodiac calibre 75 GMT movement. The watch is running but not winding via the crown. The service history is unknown.


Seller WatchSafari
Auction Number 231
Location New York City
Brand Zodiac
Model Aeronaut
Reference Number 752-925
Movement Automatic, Calibre 75
Year 1962
Dial Black
Case Width 35mm
Case Material Stainless Steel
Band Material Stainless Steel
Clasp Type Buckle
Original Box No
Original Papers No
Seller Type Dealer

Auction has expired

Auction expired without reaching reserve price

Highest bidder was: lyman.zerga7

Bidder Name Bidding Time Bid
lyman.zerga7 January 28, 2021 4:27 pm $160.00
tspoon0111 January 28, 2021 2:37 pm $150.00
lyman.zerga7 January 27, 2021 3:40 pm $100.00
Auction started
January 21, 2021 7:00 am

Reserve price Not met!

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