Nice! Diaboliq bandje?
Dank je! Nee dit is de OEM strap die er bij zat 
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Smiths PRS-48 Navigator:
During 1941 an investigation was conducted to evaluate the effectiveness of bombing raids over a 52 day period. This investigation revealed that only a quarter of bombers reporting hits on target were actually on target and that 95% of those that missed, missed by more than 5 miles.
At this time there was no GPS and most navigation carried out was by “dead reckoning”, calculated by journey start and end points, bearing, speed and elapsed time. Timepieces in use at this time were not sturdy or accurate enough to produce reliable results, mainly due to high magnetic fields from the map painting radar screens used in aircraft. In 1946 or 47 the RAF decided that they needed a more reliable timepiece and the Air Ministry approached Goldsmiths and Silversmiths Ltd to specify and acquire a high quality watch. The main specifications were chronometer grade, high anti-magnetic properties (12,000A/m) and good legibility. Two companies eventually won the tender to supply, International Watch Company (IWC) and Jaeger LeCoultre (JLC) and the watches, both designated Mk 11, entered service in 1949.
Mk 11 is the Air Ministry designation for the watch, it is not a manufacturer’s model number.
Both had long, slender hands but proved difficult to read in low-light conditions and so in 1952 the hands of the IWC were changed to improve legibility by the introduction of a shorter and thicker hour hand.
The Smiths Navigator is a faithful revival of the Mk 11, using the original Air Ministry specification but with higher anti-magnetic properties (20,000A/m) and sapphire crystal.
Bron: TimeFactors
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Deze van een dikke week geleden, omdat hij nu in de kluis ligt. Maar hij hoort er natuurlijk wel bij hier.
Straks een foto van de Flieger die ik vandaag aan ga doen.
Fijne dag allemaal!
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Heb je hem weer met zijn schitterende horloge en fantastische foto’s.
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is slechts een detail …
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Sorry , zal het niet meer doen 
Ik wil m ook!
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