Cartier Tank lug width

Watch line19 references

Lug widths across the line

Current Cartier Tank (25.7 mm case): 18 mm lug width. Earlier references: 25 mm case (1990 to 1999), 20 mm. Check the reference on your case back to be sure.

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

Cartier Tank strap size through the years

  1. 202325.7 mm case18 mmlug widthWGTA0110New strap size
  2. 199025 mm case20 mmlug width2390, 2391

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

19 Cartier Tank references

FAQ

What lug width does the Cartier Tank use?

Current Cartier Tank (25.7 mm case): 18 mm lug width. Earlier references: 25 mm case (1990 to 1999), 20 mm. Check the reference on your case back to be sure.

Do all Cartier Tank references take the same strap?

No. 3 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.

The story of the Cartier Tank

Jacqueline Kennedy wore a gold Tank engraved for a 50-mile walk for decades, and Princess Diana took up the gold Tank Francaise in 1996, the year it launched. Few watches have passed so easily from wrist to wrist as a signature.

6Tanks built when full production began in 1919
$379,500price of Jacqueline Kennedy's gold Tank at Christie's in 2017

Chapters

  1. 1952 to 1969
    Gold for a First Lady

    New variants such as the 1952 Rectangulaire and the 1960 Mini Tank Allongee kept the family growing. In 1963 Prince Stanislaw Radziwill gave his sister-in-law Jacqueline Kennedy a gold Tank, which she went on to wear for decades.

  2. 1932 to 1936
    Flipped and tilted

    A year after the Reverso, the 1932 Basculante let its case pivot in a frame to protect the glass during polo or cricket. The 1936 Asymetrique skewed case and dial so that 12 o'clock sat in the top right corner and the crown at 2.

  3. 1921 to 1928
    Stretched, squared, rethought

    Cartier kept reshaping the idea: the long, curved Cintree in 1921, the Chinoise with bars said to recall temple porticos and the larger Tank Louis Cartier in 1922. The 1928 Tank a Guichets dropped the dial for two windows, the house's first jumping-hour watch.

  4. 1917 to 1919
    Six watches to begin

    The Tank hid its lugs inside vertical brancards so the case ran straight into the strap, and an ultra-thin Jaeger calibre kept it flat. It broke with Art Nouveau and pointed toward Art Deco. Full production began in 1919 with just six pieces.

Worn by

Jacqueline Kennedy OnassisHistory1963

Her 18k gold Tank, a gift from Prince Stanislaw Radziwill, was engraved for his February 1963 50-mile walk and stayed on her wrist for decades.

Princess DianaCulture1996

She wore a 1980s Tank Louis on black leather, thought to be from her father, and a gold Tank Francaise from 1996.

Carolyn Bessette KennedyCulture1996

Photographed around Tribeca and Manhattan wearing a Tank on a black leather strap; its origin has been debated since 2017.

Michelle ObamaHistory

She wore her steel Tank Francaise in nearly all of her official photographs.

Meghan MarkleCulture2026

She wore a Tank Francaise at the Alliance for Children's Rights gala in March 2026, read by the press as a nod to Diana.

Yves Saint LaurentCulture

The couturier is named among the Tank's devoted wearers.

Moments

2017. At Christie's New York the same watch drew more than a dozen bids in three minutes and sold for $379,500, over triple its $120,000 top estimate.

1963. The engraving on Jacqueline Kennedy's Tank, "Stas to Jackie 23 Feb. 63", marks a 50-mile walk in Palm Beach that President Kennedy had challenged Americans to complete.

1928. The Tank a Guichets replaced the dial with two windows showing jumping hours and turning minutes, Cartier's first watch with that complication.

Generations and strap changes

  1. 2021
    Tank Must relaunch

    Cartier revived the Must name with quartz Tank Must models in lacquered colours and a solar SolarBeat version.

    Coloured dial versions come on matching straps.

  2. 2012
    Larger Louis Cartier, Anglaise

    The Tank Louis Cartier grew to 34.9 x 40.4 mm, and the new Tank Anglaise hid its crown inside a brancard.

  3. 1996
    Tank Française

    The Française came with a chain-link bracelet integrated into the case. Watchonista dates it to 1995.

    Integrated bracelet, unlike the strap-mounted brancards of earlier Tanks.

  4. 1989
    Tank Américaine

    A slim, curved Tank created in 1989; the first Américaine models had quartz movements.

  5. 1977
    Must de Cartier Tank

    The Must Tank used a vermeil silver case with quartz or mechanical movements, the first time Cartier produced a watch on a larger scale and in a non-precious metal.

  6. 1922
    Tank Chinoise

    A square case with extra horizontal bars above and below the dial, inspired by Chinese temple porticos.

  7. 1921
    Tank Cintrée

    A very curved, slim Tank shaped to follow the wrist, made in small editions of 50 to 100 pieces.

  8. 1919
    Tank Normale on sale

    The first Tanks reached the open market, with a rectilinear case framed by two parallel brancards.

  9. 1917
    Tank conceived

    Louis Cartier conceived the Tank, inspired by the Renault tank, and a prototype went to General John Pershing.

Firsts and innovations

The 1977 Must de Cartier was the first time the Tank was not made in precious metal.

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.