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Rolex Perpetual

Every reference with a known width takes the same strap size. Your reference is engraved on the case back or between the lugs at 6 o'clock.

20 mm

Verification: From our database, not yet verified

39 mm case

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

Watch line5 references
20 mm
Illustration drawn to scale: 39 mm case, 20 mm lugs

Lug widths across the line

The Rolex Perpetual takes a 20 mm strap: all 4 references with a known width use 20 mm.

Filter references by lug width

The story · Since 1908

The story of the Rolex Perpetual

Rolex named its first new collection in decades after 1908, the year Hans Wilsdorf registered the Rolex name, and a month after its launch Roger Federer wore it on the Met Gala red carpet. Whether in yellow gold, white gold or platinum, the 39 mm case takes a 20 mm strap.

9.5 mm

case thickness of the 1908, against 11.1 mm for the Cellini Time it replaced

Worn by

Roger Federer, Iga Swiatek, Russell Crowe, Leonardo DiCaprio

Read the full storyHide the story
9.5 mmcase thickness of the 1908, against 11.1 mm for the Cellini Time it replaced
66 hourspower reserve of calibre 7140
$10,500price gap in the US between the yellow gold 1908 on leather and on the Settimo bracelet at launch
7small link elements across each row of the Settimo bracelet, which takes its name from the Italian for seventh

Chapters

  1. 1908

    A name registered in Switzerland

    Hans Wilsdorf devised the name Rolex to sign his watches and registered it in Switzerland in 1908. More than a century later, Rolex gave that year to its dress watch as a name.

  2. 1931

    The rotor behind the name

    In 1931 Rolex invented and patented a self-winding mechanism with a Perpetual rotor. Rolex says the 1908 is inspired by one of the first watches fitted with that rotor, and its Arabic 3, 9 and 12 echo that watch.

  3. 2023

    The Cellini gives way

    At Watches and Wonders 2023 Rolex dropped the Cellini and launched the Perpetual collection with the 1908 in yellow gold (ref. 52508) and white gold (ref. 52509). The case is 39 mm and 9.5 mm thick, against 11.1 mm for the Cellini Time, thanks to the new calibre 7140 seen through a sapphire back.

  4. 2023 to 2026

    Rare sightings, big stages

    The 1908 has been seen rarely in public, which made each appearance news: Roger Federer at the 2023 Met Gala, Iga Swiatek with her trophies, Russell Crowe in Toronto and Leonardo DiCaprio at the 2026 Oscars.

  5. 2024

    Platinum and engine turning

    The 1908 ref. 52506 arrived in 950 platinum with an ice-blue dial carrying a rice-grain guilloche. Revolution calls it the first engine-turned guilloche dial from Rolex in modern times, cut on a traditional rose engine.

  6. 2025

    A bracelet of seven links

    Rolex gave the yellow gold 1908 its first metal bracelet, the Settimo, with rows of seven small domed links and a concealed Crownclasp. It leaves a deliberate gap at the case, with no fitted end links, for a vintage look.

Worn by

Roger FedererSport2023

As a co-host of the 1 May 2023 Met Gala he wore a white gold, black-dial 1908, the first public appearance of the watch, and said it added timeless elegance to his look.

Iga SwiatekSport2023

The Rolex Testimonee chose a yellow gold, white-dial 1908 to celebrate her WTA Finals win in Cancun in November 2023, and wore ref. M52508-0006 with the Indian Wells trophy in March 2024.

Russell CroweScreen2025

Wore his platinum ice-blue 1908 on a chocolate brown strap at the Toronto premiere of Nuremberg in September 2025 and posted wrist shots of it; on his watch channel he calls it the watch he loves wearing for special occasions.

Leonardo DiCaprioScreen2026

The Rolex Testimonee wore the platinum ice-blue 1908 ref. 52506 on a matte black alligator strap at the 2026 Oscars, a personal red-carpet choice, not a film role.

Moments

2026. Best Actor nominee Leonardo DiCaprio passed on his usual Daytona for a platinum 1908, while his film One Battle After Another won Best Picture.

2024. Indian Wells, 17 March 2024: Swiatek beat Maria Sakkari 6-4, 6-0 and posed with the trophy wearing a yellow gold 1908 ref. M52508-0006 on a brown alligator strap.

2023. Met Gala, New York, 1 May 2023: barely a month after the launch, co-host Roger Federer wore a white gold, black-dial 1908, its first appearance in public.

2023. WTA Finals, Cancun, November 2023: Iga Swiatek won the title, regained the world No. 1 ranking and celebrated in a yellow gold 1908.

Generations and strap changes

  1. 2025
    Refs. 52508-0007 and 52508-0008, Settimo

    The yellow gold 1908 on the Settimo bracelet, black dial (0007) or white dial (0008). Fratello notes gold screws instead of pins for sizing.

    Settimo is offered only on the yellow gold 1908; Rolex says the bracelet was created exclusively for this watch.

  2. 2024
    Ref. 52506, platinum ice blue

    950 platinum case with an ice-blue rice-grain guilloche dial and white gold markers; Monochrome measures about 47 mm lug to lug.

    Monochrome lists a 20 mm alligator strap in matte black or matte brown with a platinum Dualclasp.

  3. 2023
    Ref. 52508, yellow gold

    Launch model in 18k yellow gold with intense white or intense black dial, calibre 7140, 66-hour power reserve and 50 m water resistance.

    Fratello gives 20 mm lug spacing and a 20 mm alligator strap with gold double-folding clasp; Rolex fits a Dualclasp.

  4. 2023
    Ref. 52509, white gold

    The same 39 mm by 9.5 mm case in 18k white gold, the version Roger Federer wore with a black dial to the Met Gala.

    Same 20 mm lug spacing as the 52508 per Fratello's shared specification.

5 Rolex Perpetual references

Rolex Perpetual 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.

  • 52509‑0002

    Perpetual 1908 (Black Dial)

    Lug width: 20 mm

    Source: Database

    Case size: 39 mmBlack dial

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 52506‑0002

    Perpetual 1908 39 Platinum / Ice Blue

    Lug width: Proprietary strap system

    Source: Database

  • 52508‑0006

    Perpetual 1908

    Lug width: 20 mm

    Source: Database

    Case size: 39 mmNatural / Cream dial

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 52509

    Perpetual 1908 white gold

    Lug width: 20 mm

    Source: Database

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 52508

    Perpetual 1908 yellow gold

    Lug width: 20 mm

    Source: Database

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified

FAQ

What lug width does the Rolex Perpetual use?

The Rolex Perpetual takes a 20 mm strap: all 4 references with a known width use 20 mm. These widths come from our database and are not yet verified.

What lug width does the Rolex 1908 have?

20 mm. Fratello lists 20 mm lug spacing for refs. 52508 and 52509, and Monochrome lists a 20 mm strap on the platinum ref. 52506.

What strap and clasp does it come with?

A matt alligator strap (black, or brown on the yellow gold white-dial version) with green calfskin lining and a Dualclasp, a Rolex double folding clasp made in the same metal as the case.

Can I fit the Settimo bracelet to a white gold or platinum 1908?

Rolex offers the Settimo only on the 18k yellow gold 1908, in refs. 52508-0007 and 52508-0008. It was designed specifically for the watch, and its case attachment system is reported as patent pending, so treat it as a factory configuration rather than an add-on.

Will a strap sit flush against the case?

The 1908 has short, slim lugs and Rolex's own Settimo bracelet does not sit flush: it leaves a visible gap at the case by design.

How does it wear on a small wrist?

The case is 39 mm wide and 9.5 mm thick with short lugs; published lug-to-lug figures are 47 mm or 45.2 mm depending on the source.

Other Rolex collections

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.