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Aerotimer - COSC certified 24h wristwatch (AWW 9)
Specifications
Name: Lufthansa JMD Aerotimer
Model Reference: Aerotimer 24h
Movement: ETA 2893-2 automatic, 21 jewels, power reserve 46h, number 216
Time display: 2 x 24 hour, minute, seconds,
Date: quick set date at 3
Case: titanium, screw on back, transparent caseback with sapphire glass, titanium bidirectional bezel with one yellow lumed mark
Size: 39 mm diameter
Height: 11 mm
Face: black, two 24 hour dial circles with white hour and minute numbers and markers, 24 on top
Text on dial: JMD, Aerotimer, Swiss Made
Text on back: (Lufthansa logo) Lufthansa Aerotimer 454 - Saphirrecrystal - Waterresistant 10 ATM - Chronometer Officially Certified
Hands and markers: black hands, white lumed hour, minute and second hands, yellow lumed 2[SUP]nd[/SUP] hour hand
Water-resistance: 10 ATM
Crown: main crown at 3, chronograph push buttons at 2 and 4
Crystal: domed sapphire crystal
Lug: 20 mm
Bracelet: leather strap with fold over clasp
Foreword
For some reason this watch has never mentioned before in WUS.
In most cases this watch is named Lufthansa Aerotimer, sometimes JMD Aerotimer. Short summary what we have here is given in 24watches.info:
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Comments
This watch is put in a huge box. The size of a box was probably defined by the size of COSC certificate J. Every watch must individually pass the tests. My watch has movement number 216 and it is written on the certificate.
This watch is a limited special edition. It was never freely available, purchasable only as a part of frequent flyer program (after 100,000 miles or something). I don't know how many Aerotimers were produced. My watch has case #454, movement #216. Because of the limited edition there is not much information on this watch. In WUS it was never mentioned, in German uhrforum.de only once. But once in 2-3 years I think you will have chance to buy it on the bay.
Next not so common feature is that Aerotimer is a two 24h timezone watch with two independent 24h hour hands. Aerotimer was introduced with ETA 2893-2 movement, likely in 1999. In 1998 Glycine brought his Airtimer 2000, with the same movement. Airman had a 24h bezel and was considered even a three 24h timezone watch. For some reason Aerotimer's bidirectional ratcheted bezel is very simple, with only one triangular mark. This type of bezel you can use to mark one time point on minutes (or hours) scale. As the watch was developed by Lufthansa pilots they probably thought, that two time zones are enough for travelers and simple bezel is all they need more.
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According to uhrforum.de this watch was produced by Mercier SA, managed by Jean-Maurice Donzé (JMD!).
Mercier SA is for other brands supplier of movements or whole watches, if needed. They are producing movements even for very high end watches. Example - H. Moser & Cie. movements are actually made by Mercier.
"Only the best materials such as sapphire, titanium and whitegold" have been used for this watch. Whitegold decorated movement with blue screws looks gorgeous. The domed sapphire crystal with bluish reflections is also superb.
This watch is designed to look like an instrument from dashboard and that's pretty nice. But the legibility is poor for me. Especially the hour hand no 1 is too small. To make it better readable I have both hour hands set on the same time. Then I get one bigger hour hand what I can read without problems. But that means the loss of 2[SUP]nd[/SUP] time zone.
Another not so good solution is the lumed(?) triangle mark on bezel. On my watch the unprotected mark is lost, of course. How the bezel should look like you can see on the photo below, where 12h version of Aerotimer is pictured.
Summary
Of course I'm satisfied. For only about a "COSC option" price I got full COSC certified watch. The technical part is on the highest level. The dial could be better designed. Legibility is insufficient, but I have workaround how to make it better. I'm wearing it quiet often.
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12h Aerotimer version, posted by Sheldon Winsor
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Specifications
Name: Lufthansa JMD Aerotimer
Model Reference: Aerotimer 24h
Movement: ETA 2893-2 automatic, 21 jewels, power reserve 46h, number 216
Time display: 2 x 24 hour, minute, seconds,
Date: quick set date at 3
Case: titanium, screw on back, transparent caseback with sapphire glass, titanium bidirectional bezel with one yellow lumed mark
Size: 39 mm diameter
Height: 11 mm
Face: black, two 24 hour dial circles with white hour and minute numbers and markers, 24 on top
Text on dial: JMD, Aerotimer, Swiss Made
Text on back: (Lufthansa logo) Lufthansa Aerotimer 454 - Saphirrecrystal - Waterresistant 10 ATM - Chronometer Officially Certified
Hands and markers: black hands, white lumed hour, minute and second hands, yellow lumed 2[SUP]nd[/SUP] hour hand
Water-resistance: 10 ATM
Crown: main crown at 3, chronograph push buttons at 2 and 4
Crystal: domed sapphire crystal
Lug: 20 mm
Bracelet: leather strap with fold over clasp
Foreword
For some reason this watch has never mentioned before in WUS.
In most cases this watch is named Lufthansa Aerotimer, sometimes JMD Aerotimer. Short summary what we have here is given in 24watches.info:
I bought this watch recently in February from eBay with box and papers. The price was EUR 307 and 19 bids were in bid history. Read on and you see that it was a very good price.
Comments
The most spectacular feature of this watch is that it is COSC certified! To be honest, it is the only 24h COSC certified watch I have. Mostly these watches are on too high end for me. The only brand with 100% of production certified by COSC is Breitling. Other brands like Rolex, Omega, TAG Heuer etc. are certifying only certain models. According to Wikipedia only 3% of Swiss watch production is COSC certified.
Some watchmakers (like Ocean7) offer for some models "COSC option". On Ocean7 website is a good description of COSC:Wikipedia said:
Usually the COSC option is USD 200-300, or even more. Unfortunately, no 24h watch by Ocean7 (Airnautic, Classic, AN-24, Early Bird) is available with COSC option.
This watch is put in a huge box. The size of a box was probably defined by the size of COSC certificate J. Every watch must individually pass the tests. My watch has movement number 216 and it is written on the certificate.
This watch is a limited special edition. It was never freely available, purchasable only as a part of frequent flyer program (after 100,000 miles or something). I don't know how many Aerotimers were produced. My watch has case #454, movement #216. Because of the limited edition there is not much information on this watch. In WUS it was never mentioned, in German uhrforum.de only once. But once in 2-3 years I think you will have chance to buy it on the bay.
Next not so common feature is that Aerotimer is a two 24h timezone watch with two independent 24h hour hands. Aerotimer was introduced with ETA 2893-2 movement, likely in 1999. In 1998 Glycine brought his Airtimer 2000, with the same movement. Airman had a 24h bezel and was considered even a three 24h timezone watch. For some reason Aerotimer's bidirectional ratcheted bezel is very simple, with only one triangular mark. This type of bezel you can use to mark one time point on minutes (or hours) scale. As the watch was developed by Lufthansa pilots they probably thought, that two time zones are enough for travelers and simple bezel is all they need more.
According to uhrforum.de this watch was produced by Mercier SA, managed by Jean-Maurice Donzé (JMD!).
Mercier SA is for other brands supplier of movements or whole watches, if needed. They are producing movements even for very high end watches. Example - H. Moser & Cie. movements are actually made by Mercier.
"Only the best materials such as sapphire, titanium and whitegold" have been used for this watch. Whitegold decorated movement with blue screws looks gorgeous. The domed sapphire crystal with bluish reflections is also superb.
This watch is designed to look like an instrument from dashboard and that's pretty nice. But the legibility is poor for me. Especially the hour hand no 1 is too small. To make it better readable I have both hour hands set on the same time. Then I get one bigger hour hand what I can read without problems. But that means the loss of 2[SUP]nd[/SUP] time zone.
Another not so good solution is the lumed(?) triangle mark on bezel. On my watch the unprotected mark is lost, of course. How the bezel should look like you can see on the photo below, where 12h version of Aerotimer is pictured.
Summary
Of course I'm satisfied. For only about a "COSC option" price I got full COSC certified watch. The technical part is on the highest level. The dial could be better designed. Legibility is insufficient, but I have workaround how to make it better. I'm wearing it quiet often.
12h Aerotimer version, posted by Sheldon Winsor
