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1957
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321
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CK 2915
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1st model
identified "OMEGA Speedmaster"; oxidised matt black dial
with applied ½ symbol; minute circle to 1/5 second,
“baton” hour markers and Balane hands (arrow for
hour) with radium; 30-minute totalizer on the right and
12-hour one at the bottom, permanent small seconds on the
left (all three
sub-dials on recessed
circular “guilloché” patterned background),
steel satin-brushed bezel with engraved tachymeter scale;
round water-resistant symmetrical steel case (Ø 39mm)
with reinforced crystal and screw-in base with O-shaped
gasket solid rounded, encircling, flat-ended horns, back
chemically engraved with Speedmaster name in an arc
on the bezel, between two notches, as well as the Seahorse
(symbol of water-resistance and the Seamaster collection)
and the ½ symbol on the flat side, and this can also be
simply polished to allow a simple dedication or monogram to
be engraved on the piece. 30 components (watch head only,
excluding bracelet and pins), leather strap or
semi-extensible steel bracelet with flat links.
(Do we have bracelet ID’s for
this model?)
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1959
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321
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CK 2998
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Push-buttons
with O-ring gaskets, Alpha hands and flat black aluminium
bezel. (Flat area) of the base engraved Speedmaster
in an arc, with the Seahorse and the ½ symbol, leather strap
or semi-extensible steel 7077 bracelet with flat links.
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1962
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321
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ST 105.002
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Same, but new
Mapics 6-digit reference, available with tachymeter,
pulsometer, telemeter, telemile or decimal scale on bezel.
Leather strap or semi-extensible steel bracelet with flat
links. (Do we have bracelet
ID’s for this model?)
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1963
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321
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ST 105.003
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Bezel enlarged
from 38.6 to 39.7 mm (aperture 30mm and 30.8mm respectively)
and “baton” hands. Leather strap or
semi-extensible 1501 (ex 7912) steel bracelet with flat
links.
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ST 105.012
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Asymmetrical
case Ø 42 mm protecting crown and push-buttons, water
resistance of push-buttons improved by inside rubber
membrane, facetted "lyre" horns; first appearance of the
appellation “Professional” on the dial from 1966
onwards. Leather strap or semi-extensible 1506 steel
bracelet with flat links.
These two
references (ST 105.003 and ST
105.012) are the first models chosen by NASA from
1965 for its astronauts.
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1966
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321
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ST 145.003
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New reference
of former ST 105.003. Leather strap or semi-extensible 1501
steel bracelet with flat links.
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ST 145.012
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New reference
of former ST 105.012, with the inscription
“Professional” on the dial from that year onwards.
Steel pushers with screws, leather strap or semi-extensible
1506 steel bracelet with flat links. Reference replaced by
145.022 from 1968.
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1968
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861
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ST 145.022
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Shuttle
(or cam) calibre 21,600 V/h, flat dial, painted OMEGA symbol
(previously applied); cal. 861=220 separate components.
Semi-extensible ST 1039/516 leather or steel bracelet with
flat links.
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321
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ST 145.012
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Special
version with white dial, “Apollo” hands and 5-60
on bezel for certain markets (Italy, South Africa etc.)
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861
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ST 105.012
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Same
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