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    Omega Speedmaster lug width

    Watch line63 references

    Lug widths across the line

    20 mm is the most common lug width on the Omega Speedmaster: 31 of the 62 references with a known width (50%). Other references use 18 mm, 21 mm, 19 mm, so check your exact reference.

    Filter references by lug width

    Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size. Report an error

    Omega Speedmaster strap size through the years

    1. 202642 mm case20 mmlug width310.60.42.50.01.002New strap size
    2. 202543 mm case21 mmlug width304.30.43.52.01.001, 304.30.43.52.06.001

    First year each case and lug width combination appears in the line, newest first.

    63 Omega Speedmaster references

    The story of the Omega Speedmaster

    Worn by

    Buzz AldrinSpace

    Aldrin wore his Speedmaster on the lunar surface during Apollo 11 in 1969, making the line the first watch worn on the Moon. Neil Armstrong left his inside the Lunar Module.

    Walter (Wally) SchirraSpace

    Schirra wore his own Speedmaster (CK2998) on the Mercury-Atlas 8 mission, the first Omega watch worn in space.

    Jack SwigertSpace

    During Apollo 13, Swigert used his Speedmaster to time critical manual engine burns after an oxygen tank explosion cut power to the onboard computer.

    Generations and strap changes

    1. 2021
      Moonwatch Master Chronometer

      Calibre 3861 Master Chronometer, stepped dial and a new five-link bracelet with screwed links.

      20mm between lugs; new bracelet tapers to a 15mm push-button clasp.

    Firsts and innovations

    The Speedmaster was the first watch worn on the Moon, during Apollo 11 in 1969.

    Omega received NASA's Silver Snoopy Award in 1970 after the Apollo 13 crew returned safely.

    About Omega

    Founded in 1848 in La Chaux-de-Fonds, Switzerland.

    Ambassadors include Eddie Redmayne, Kaia Gerber, Presley Gerber The Omega story

    FAQ

    What lug width does the Omega Speedmaster use?

    Most references use 20 mm (50% of the 62 references with a known width). Some use 18 mm or 21 mm.

    Do all Omega Speedmaster references take the same strap?

    No. 4 different lug widths appear across the line, often by case size or generation. Check the reference engraved on the case back or between the lugs.

    Help

    What is lug width?

    The gap between the two lugs that hold the strap, in millimetres. A new strap must match it exactly: 20 mm lugs take a 20 mm strap.

    Measure it in 30 seconds

    1. Take the strap off, or look at the back of it: many straps print their width.
    2. Measure the inside gap between the lugs with a caliper or a millimetre ruler.
    3. Round to the nearest whole millimetre. Most watches use 18, 20 or 22 mm.

    Strap, quick release or system?

    Most watches use spring bars, so any strap of the right width fits. Many smartwatches use their own band system instead, such as Apple Watch bands or Garmin QuickFit.