327.20.43.50.01.001
Speedmaster Mark Speedmaster
Lug width: 20 mm
Source: DatabaseCase size: 42.4 mmGrey dialCase material: Steel - Sedna™ gold
- Attachment
- classic lugs
- Status
- Listed in our database, not yet verified
The story · Since 1969
The story of the Omega Speedmaster Mark
In 1969, the year the Speedmaster went to the Moon, Omega was already redesigning it: the Mark II brought a barrel-shaped case and a mineral crystal. The Mark series ran until the mid-1980s with the Mark V, and Omega reissued the Mark II in 2014.
- 1969 to 1972 Mark II, the first redesign Omega introduced the Speedmaster Professional Mark II ref. ST 145.014 in 1969, with a barrel-shaped case, a tachymeter under the crystal and the same hand-wound calibre 861 as the Moonwatch.
- 1971 to 1974 The Speedmaster learns to wind itself The Mark III of 1971, in a 'pilot' case, was Omega's first self-winding chronograph, powered by the new calibre 1040 with a central chronograph minute hand and a 24-hour indicator.
- 1974 to 1984 The unofficial Mark 4.5 and the Mark V In 1974 came the Mark 4.5, never an official Mark, using the Lemania 5100 based calibre 1045.
1969 to 1984
years from the first Mark II to the Mark V
Read the full storyHide the story
1969 to 1984years from the first Mark II to the Mark V
28,800 vibrations per hourbeat of the Mark III's calibre 1040, faster than earlier Speedmaster movements
Chapters
- 1969 to 1972
Mark II, the first redesign
Omega introduced the Speedmaster Professional Mark II ref. ST 145.014 in 1969, with a barrel-shaped case, a tachymeter under the crystal and the same hand-wound calibre 861 as the Moonwatch. It was the first Speedmaster without a hesalite crystal. Fratello links it to a NASA prototype project codenamed Alaska. The regular Moonwatch stayed in production alongside it.
- 1971 to 1974
The Speedmaster learns to wind itself
The Mark III of 1971, in a 'pilot' case, was Omega's first self-winding chronograph, powered by the new calibre 1040 with a central chronograph minute hand and a 24-hour indicator. A 1972 advertisement said that after six Moon landings the only thing left to teach the Speedmaster was to wind itself. The Mark IV followed in 1973 with the same calibre.
- 1974 to 1984
The unofficial Mark 4.5 and the Mark V
In 1974 came the Mark 4.5, never an official Mark, using the Lemania 5100 based calibre 1045. The Mark V of 1984 used the same calibre in a case first designed for a 1982 Speedmaster sold in West Germany, and closed the vintage series.
Moments
Omega launched its first self-winding chronograph, the Mark III, in 1971; a 1972 advertisement said that after six Moon landings the only thing left to teach the Speedmaster was to wind itself.
Omega's own history page states that several Mark III watches were delivered to NASA astronauts Ron Evans and Jack Lousma. It does not say they wore them in flight; the Smithsonian holds the Omega Speedmaster chronograph NASA issued to Lousma for Skylab 3.
Generations and strap changes
- 2014Mark II, ref. 327.10.43.50.01.001 and 327.10.43.50.06.001
The reissue in black (01) and grey racing (06) versions, with the column-wheel Co-Axial calibre 3330, date, 52 hours of power reserve and a Super-LumiNova lit tachymeter ring under the sapphire on the racing version.
Omega lists 20 mm between the lugs, 42.4 x 46.2 mm, 14.85 mm thick, on a steel bracelet with a foldover clasp and comfort setting (ref. 327.10.43.50.06.001).
- 1984Mark V, ref. ST 376.0806
Calibre 1045 automatic chronograph with day, date and 24-hour indicator, black dial with tritium, 50 metres water resistance. Omega's archive calls it the German version.
Omega lists it on an integrated stainless steel bracelet.
- 1974Mark 4.5
A Mark IV with a different movement, the Omega calibre 1045.
- 1973Mark IV
The second automatic Mark, again with the calibre 1040; WatchTime and Fratello date it to 1973.
- 1971Mark III, ref. ST 176.002
Omega's first self-winding chronograph, calibre 1040 at 28,800 vibrations per hour, central 60-minute hand with a cross tip, 24-hour day and night indicator at 9 o'clock. Omega says several were delivered to NASA astronauts Ron Evans and Jack Lousma.
Omega lists a 41 mm diameter and the steel bracelet ref. 1162/172.