Eaglemoss Military Watches Collection.

All American Apollo astronauts were issued with Omega Speedmaster Professionals.
They were worn by Edward H. White on the first spacewalk and Buzz Aldrin on the moon. The regular strap was changed to a long Velcro strap so it could be worn over the Space Suits.
'Flown' Speedmasters have real historic interest and many are on display, however Buzz Aldrin's "Moon" watch was lost on its way to displayed at the Smithsonian Air and Space museum.



CasePolished 42mm case, 44.7mm with crown, 48.6mm lug to lug, 11.8mm deep.
33.5mm flat glass, Steel back stamped with description of the watch.
6mm grooved crown. 5mm smooth pushers.
Bezel is inlaid black with silver coloured 'tachymetre' scale.
Dial
Black dial with white minute/seconds markers on the outside ring. Green printed rectangle hour marks.
Three sub dials show, at 3, 24hour dial. At 6, chronograph seconds, and chronograph minutes at 9. All are marked with white on a black background, and have a concentric ring texture finish.
Chromed hands with Green lume. Hours and minutes hand straight with triangular tip. Seconds hand chromed with arrow lume pip. Sub dial hands are simple chrome.
Chronograph function
One second chronograph. Pusher at 2 starts and stops chronograph. Pusher at 4 pauses, resumes and resets after stop.
Date window at 4:30 position. Black Numerals on white background.
Movement is a Sunon PE90, Hacking movement.
Strap
20mm Black textured leatherette strap, not leather, 'antiqued textured finish. Narrows to 18mm polished buckle, 185mm - 230mm fitting.

Comes in a metal tin instead of the usual cardboard.

At first glance this looks to be a nice addition to the collection, however under examination the functionality of the watch lets it down.
Having the chronograph seconds on the sub dial and the main seconds run on the centre hand is a 'second best' option. Also centre seconds chronograph usually run at better than 1 seconds.
The Tachymetre is practically impossible to use as the centre seconds hand is not controlled by the stopwatch pushers.
Normally you would start the Tachymeter at a zero point then after a fixed distance, i.e. 1 mile, or a number of operations, i.e. 10 rotations of a gear, you stop the measurement by stopping the seconds hand, and calculate the number 'per hour' by reading the scale.
Also the scale on my example is incorrectly marked, the 180 unit point should be adjacent to 20 second point, on mine it is nearer 22 seconds, other values are also incorrect, it would be very inaccurate to use indeed, particularly at high values.
The chronograph also has no fly back and returns to Zero point by turning quickly running backwards if less than 30 minutes or forwards after 30 minutes, which takes quite some time.
A couple of strap options, NATO and steel.