The Omega Constellation Observatory takes a 19 mm strap: all 3 references with a listed width in our database use 19 mm. Check the reference on your case back to be sure.
Indicative information. Check your watch before buying a strap: whatsmylugwidth.com is not responsible for an incorrect size.
Collection3 references
Illustration drawn to scale: 39.4 mm case, 19 mm lugs
Lug widths across the line
The Omega Constellation Observatory takes a 19 mm strap: all 3 references with a listed width in our database use 19 mm. Check the reference on your case back to be sure.
Filter references by lug width
3 Omega Constellation Observatory references
Omega Constellation Observatory references in our database. Each card says where its width comes from: listed by the maker (linked to the maker's page in the details), two independent sources agree, or listed in our database and not yet verified by us.
140.50.39.21.99.001
Constellation Observatory 39.4 Moonshine Gold
Lug width: 19 mm
Source: Database
Case size: 39.4 mm · Year: 2026 · Gold dial · Case material: Gold
Attachment
classic lugs
Movement
Automatic
Caseback
Solid back
Production
verified-source
Status
Listed in our database, not yet verified
140.13.39.21.02.001
Constellation Observatory 39.4 O-MEGASTEEL
Lug width: 19 mm
Source: Database
Case size: 39.4 mm · Year: 2026 · Silver dial · Case material: Steel
Attachment
classic lugs
Movement
Automatic
Caseback
Solid back
Production
verified-source
Status
Listed in our database, not yet verified
140.53.39.21.99.002
Constellation Observatory 39.4 Sedna Gold
Lug width: 19 mm
Source: Database
Case size: 39.4 mm · Year: 2026 · Silver dial · Case material: Gold
Attachment
classic lugs
Movement
Automatic
Caseback
Solid back
Production
verified-source
Status
Listed in our database, not yet verified
No reference matches.
FAQ
What lug width does the Omega Constellation Observatory use?
The Omega Constellation Observatory takes a 19 mm strap: all 3 references with a listed width in our database use 19 mm. Check the reference on your case back to be sure. These widths come from our database and are not yet verified.
Where do these Omega Constellation Observatory lug widths come from?
From our database, which lists 3 Omega Constellation Observatory references, 3 of them with a listed width. Each reference card says whether the maker lists the width, two independent sources agree on it, or it is not yet verified.
Share a photo of your Omega Constellation Observatory
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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
Take the strap off, or look at the back of it: many straps print their width.
Measure the inside gap between the lugs with a caliper or a millimetre ruler.
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.