ＳＷＡＴＣＨ ＣＨＲＯＮＯＭＥＴＥＲ（Jirou's Collections）

The following is extracted in part from the "Swatch world Journal".

TimeCutChronometerについて
In order to recieve the SOCC certificate 1500 numbered (on the face and packaging) Time Cut chronographs went through a series of rigorous tests over a tortuous ten days. They were knocked about, shaken and hit. They were kept in the cold. They were subjected to heat. At the end of all the tests they all worked perfectly ! The SOCC lab's in Geneva recieved the movements and kept them all separate throughout the testing procedure. The lab technician registers the movement upon recaipt and allots it an I.D. number which he engraves upon the dial. This number will never leave the chronometer and is a guarantee of its quality. Once this is done, basic times are recorded to serve as a reference thoroughout the tests. Each movement passes through the Vision system which is highly accurate and consists of a camera and computer. This records two times consecutively and those times are processed through a computer in relation to the exact time provided by a standard clock radio controlled from a centre in Germany. Then the test begins! The movements are put in dust free chambers, heated to 23 C with a very low level of humidity. Every 24 hours they are checked on the Vision system and put back in the chamber and tested under all sorts of other conditions. On the third day for example, the movements are cooled to 8 C, fourth day heated to 38 C, eighth day the wearer simulation test is done, where for 240 minutes the model is subjected to 10 G shocks and then rotated and placed back in the 23 C chamber. The tenth day sees it subjected to 200 dynamic shocks of 100 G over 100 mins and then put back and checked one last time. Then and only then will the movement recieve the prized certificate (if it passes every test). This is only a brief description of some aspects of the torture these watches are subjected to before becoming a "chronometer". As you can see, a watch this hard working is entitled to a little special treatment at the end of it all but I will be wearing mine at every opportunity. Maybe?

風防ガラスと裏蓋にchronometerと表示された、公式クロノメーター証明書がついたswatchのこと（クオーツ）。現在まで４種類発売されています。しかしスイスのＢＯetcの検査機関でクオーツのクロノメター認定したとの記録が見あたりませんのでご存知の方ご教示ください。

Jelly Fish Model /2000　GK124（写真）　1990 only original vertion
The Knight of Night /1000 GB719（写真）1990
BMX/100 GP104（写真）1990
Turbine /1000 GK125（写真）1990　3417/1000　風防にchronometerの陽刻がみられる。証明書も添付、serialnumも一致している

Perfect Timing(AutomaticChronometer) FACE SAZ105について
On November 12, 1995, just 250 days remain until the Opening Ceremony of the 1996 Olympic Games in Atlanta. And to mark the occasion Swatch -the Official Timekeeper of these Games - is proud to present 'Perfect Timing', an officially certified automatic chronometer. Apart from the high standards of technology and quality typically associated with Swatch, 'Perfect Timing' epitomizes the split-second precision essential for the timing of an event as important as the Olympic Games, and its launch represents the start of an international countdown. Everyday,just one of the limited edition of 250 pieces will be sold in a city somewhere in the world. 'Perfect Timing' No. 1, of course, will be sold in Atlantaitself on the day before the 1996 Centennial Olympic Games are opened. This explains why the watches, numbered from 1 to 250, will be sold inreverse order, each one representing one of the days remaining until the Opening Ceremony.
　Although 'Perfect Timing' is a perfect way of putting people in the mood for the 1996 Summer Olympic Games, it is also Swatch's way ofdemonstrating its credentials as Official Timekeeper. Swatch was not prepared to settle for half measures and sent every single 'Perfect Timing' to the Controlle Officiel Suisse des Chronometres (COSC) - Switzerland's official chronometer testing centre - in La Chaux-de-Fonds. The fact that the centre awarded 'Perfect Timing' its chronometer certificate is sample proof that Swatch was able to take the final Olympic hurdle - if, indeed, there ever was one - effortlessly. The result of all this: the 'Perfect Timing' is entitled to call itself a full-fledged chronometer. So, the countdown has started. And Swatch is bringing 'Perfect Timing' to the 1996 Olympic Games in Atlanta.
　A chronometer is first of all a precison instrument. You might say that a very good watch is a 'regular chronometer', There is a slight difference here, however, as only a watch which has been awarded an official certificate of precision issued by the Swiss Office for Chronometric Controls (COSC) may be called a chronometer. In order to be awarded such a certificate, the watch is tested in various positions and at various temperatures. It will only be passed if its degree of precision satisfies the stringent requirements of the official tests. This means that the designation 'chronometer' is protected!