Vous connaissez ce chrono Seiko 3-6-9 ?
écrit par ZEN le 18 avril 2004 15:02:57:
Il fut fabriqué pour la Royale Air Force calibre 15 rubis 7/A28A
Oh et puis je vous met tout le texte (en British)
5242
Seiko British Military Chronograph
As far as I know the only watch Seiko have made specifically for any armed force since the pilot’s Seikoshas of WWII. This Royal Air Force Seiko chronograph differs quite considerably from the version sold at retail; this model does not have a date, it has solid bars and (most importantly) it has a much higher quality jewelled movement.
The movement is the 15 jewel 7/A28A
The case is brushed finish stainless steel with a screwed back with three buttons set into the case; the normal, start/stop/restart and reset buttons are in their normal places at 2 & 4. The split seconds button is at 10 whilst the crown is at 8, the crown is only used on this watch to set the time, and even that function is not required that often.
The black dial seems to have a normal 3 dial layout, however closer inspection reveals that all is not as it seems; the running seconds dial is at 6 and the 30 minute register is at 9; but the register at 3 is the unusual one; it indicates TENTHS of one second. When the chronograph is started, it whirls around its register once a second as can be expected but stops at the vertical position once the chronograph registers 10 minutes; however if the chronograph is stopped at a time after the 10 minutes the tenth seconds register will suddenly move to its correct position so that the actual elapsed time correct to tenths of a second can be measured.
The watch has a split seconds facility even though there is only one sweep seconds hand; this stops once the split button is operated and then “catches up” to the correct elapsed time if the button is pushed again.
The dial has the symbol P in a circle, this is to signify Promethium used as the luminous material on the watch. This is a UK military requirement and the rest of the specification and issue information can be found on the case back; this shows that the watch was issued in 1984.
The case is 95% whilst the movement is unrated being quartz and the dial is 95%.
The watch measures 35mm diameter, 44mm lug to lug, 9mm high and takes an 18 mm strap and a new NATO (G10) strap is fitted.
£500.00 (approx. $800.00 US)
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