Longines lug widths

Most Longines watches use a 21 mm lug width: 68 of the 269 Longines references with a confirmed width (25%).

Lug widths at Longines

The Longines story

1832
Founded in Saint-Imier, Switzerland by Auguste Agassiz.
1867
Ernest Francillon's new factory at Les Longines produced the first Longines movement, the L20A, wound and set by the crown, which won a bronze medal at the Paris Universal Exhibition.
1880
Francillon registered the Longines name and winged hourglass symbol with the Swiss Federal Office of Intellectual Property.
1927
Longines timed Charles Lindbergh's transatlantic flight of 20 May 1927.
1931
Longines registered the Hour Angle Watch, developed with Lindbergh and Philip Van Horn Weems, as an international design deposit.
1954
The Conquest model was introduced.

Firsts and innovations

1979. Longines made a watch measuring 1.98 mm, described as the world's thinnest watch at the time.

Ambassadors over the years

Andre AgassiFrom 2007Tennis player

Andre Agassi became a Longines Ambassador of Elegance in 2007.

Steffi GrafFrom 2008Tennis player

Steffi Graf joined her husband Andre Agassi as a Longines Ambassador of Elegance in November 2008.

Kate WinsletFrom 2010Actor

Kate Winslet was named a Longines Ambassador of Elegance in 2010.

Simon BakerFrom 2012Actor

Simon Baker was introduced as a Longines Ambassador of Elegance at the Prix de Diane Longines on 17 June 2012.

Jennifer LawrenceFrom 2022Actor

Longines named Jennifer Lawrence its newest Ambassador of Elegance in November 2022.

Henry CavillFrom 2025Actor

Henry Cavill joined the Longines Ambassador of Elegance family in February 2025.

Longines collections

Master Collection 21 or 20 mm 18 references Presence 20 or 18 mm 13 references Spirit 21 or 22 mm 13 references Heritage 20 or 18 mm 12 references HydroConquest 21 or 19 mm 12 references Dolce Vita 19 or 20 mm 12 references Conquest 17 or 21 mm 11 references Hydroconquest 20 or 21 mm 11 references Evidenza 18 or 19 mm 10 references Prestige 18 or 19 mm 9 references Flagship 18 or 19 mm 8 references Conquest Classic 15 or 18 mm 7 references Record 20 or 19 mm 7 references Lyre 18 or 20 mm 6 references Primaluna 18 mm 6 references

FAQ

What lug width do Longines watches use?

21 mm is the most common (25% of Longines references with a confirmed width), followed by 20 mm and 22 mm.

Do all Longines watches take the same strap size?

No. Longines uses 6 different lug widths across its collections, so check your exact model or reference.

When was Longines founded?

Longines was founded in 1832 in Saint-Imier, Switzerland by Auguste Agassiz.

Who are Longines's ambassadors?

Over the years Longines has partnered with Andre Agassi (from 2007), Steffi Graf (from 2008), Kate Winslet (from 2010), Simon Baker (from 2012), Jennifer Lawrence (from 2022), Henry Cavill (from 2025).

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.

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