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    Omega Planet Ocean lug width

    Watch line34 references

    Lug widths across the line

    Omega Planet Ocean references use 19 mm or 21 mm or 22 mm depending on the reference and case size, so check yours in the list below. The most common is 21 mm (13 of 30 references with a known width).

    Filter references by lug width

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    Omega Planet Ocean: Third-generation Planet Ocean 43.5 mm ref. 215.30.44.21.01.001 on the steel bracelet, worn on the wrist
    Third-generation Planet Ocean 43.5 mm ref. 215.30.44.21.01.001 on the steel bracelet, worn on the wrist. Photo: KaiKnight2, CC BY-SA 4.0, via Wikimedia Commons

    34 Omega Planet Ocean references

    FAQ

    What lug width does the Omega Planet Ocean use?

    Omega Planet Ocean references use 19 mm or 21 mm or 22 mm depending on the reference and case size, so check yours in the list below. The most common is 21 mm (13 of 30 references with a known width).

    Do all Omega Planet Ocean references take the same strap?

    No. 5 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.

    What lug width does the Planet Ocean take?

    It depends on the case. Omega lists 19 mm for the 39.5 mm, 20 mm for the 42 mm, 21 mm for the 43.5 mm GMT, and 22 mm for the 45.5 mm models.

    Does the Planet Ocean bracelet have micro-adjustment?

    From the 2016 third generation, yes. Earlier bracelets were sized with full and half links held by pin and collar.

    Does the Planet Ocean bracelet extend over a wetsuit?

    Yes. Omega's sheets for the 43.5 mm models list a foldover clasp with comfort setting and diver extension, and the 2025 bracelet has a dive extension.

    Did the case size change between generations?

    Yes. The 2016 update replaced 37.5, 42 and 45.5 mm with 39.5 and 43.5 mm for most three-hand models, while chronographs stayed at 45.5 mm. The 2025 model is 42 mm.

    The story of the Omega Planet Ocean

    Omega launched the Planet Ocean in 2005 as a tougher, 600 m sibling to the Seamaster 300M, and a year later it opened Daniel Craig's first Bond film in the parkour chase of Casino Royale. In 2019 three experimental Planet Ocean Ultra Deep watches made the record dive to the bottom of the Mariana Trench, two on the submersible's robotic arm and one on a lander.

    600 m600 m: water resistance of the Planet Ocean since its 2005 launch, kept on the 2025 fourth generation
    1,948pieces of the 2009 Liquidmetal edition, for the Seamaster's launch year
    10,928 mdepth of the 2019 Challenger Deep dive with Ultra Deep prototypes aboard (as first reported)

    Chapters

    1. 2025 to today
      A full redesign at 20

      The fourth generation, launched in 2025, broke with the first three: sharper lines, a ceramic bezel and a more luxurious presentation. Hodinkee called it "an entirely new take on the Planet Ocean design language".

    2. 2019
      To the bottom of the ocean

      For Victor Vescovo's Five Deeps Expedition, Omega built Planet Ocean Ultra Deep Professional prototypes with cases machined from cutoffs of the submersible's titanium hull. Two rode the robotic arm of Limiting Factor and a third a lander during the record dive into the Challenger Deep.

    3. 2016 to 2024
      Master Chronometer and new sizes

      In 2016 the three sizes gave way to 39.5 mm and 43.5 mm for most models, with METAS Master Chronometer calibres 8800 and 8900, while chronographs kept 45.5 mm. The bezel combined Liquidmetal with orange vulcanised rubber, and the clasp finally gained micro-adjustment. Deep Black models in 45.5 mm ceramic cases joined the line.

    4. 2011 to 2015
      In-house calibre 8500 arrives

      The second generation moved to Omega's in-house co-axial calibres 8500 and 8501, plus 9300 for the chronograph, all with a Si14 silicon balance spring and a four-year warranty. A 37.5 mm size joined 42 and 45.5 mm, and a sapphire caseback made the watch over a millimetre thicker. A Planet Ocean GMT in 43.5 mm followed in 2013.

    5. 2009
      Liquidmetal and a ceramic dial

      A limited edition of 1,948 pieces, ref. 222.30.42.20.01.001, introduced a ceramic bezel with Liquidmetal alloy pressed into its engravings and a polished ZrO2 ceramic dial. It kept calibre 2500 and the 14.5 mm thickness, and Fratello calls it a transitional reference.

    6. 2005 to 2010
      A 600 m diver on calibre 2500

      The first Planet Ocean came in 42 mm and 45.5 mm with 600 m water resistance, an aluminium bezel in black or orange and a matte black dial. Inside was the C-version of calibre 2500, an ETA 2892-A2 base with Omega's co-axial escapement, which kept the 42 mm case at 14.5 mm thick. Buyers chose leather, rubber or a bracelet with curved top surfaces.

    Worn by

    Daniel CraigScreen2006

    His Bond wore a Planet Ocean in the opening parkour chase of Casino Royale, and the producers later gave him that watch, which he says never leaves the safe in his closet. In Quantum of Solace (2008) Omega says Bond chose a 42 mm steel Planet Ocean 600M on a bracelet.

    Keith UrbanMusic2013

    The country singer was seen wearing a Seamaster Planet Ocean on the American Idol judges' panel.

    Moments

    In 2019 Victor Vescovo piloted Limiting Factor to the bottom of the Challenger Deep with two Planet Ocean Ultra Deep prototypes on its robotic arms. The 10,928 m dive beat the depth reached by the Trieste in 1960.

    The lander carrying the third prototype, FOD-X 3, stuck in the trench sediment, and the submersible had to dive again to free it. The watch spent about two and a half days at the bottom and Wired reports it lost one second.

    The Ultra Deep prototypes were pressure tested at Triton's facility in Barcelona with a DNV-GL surveyor, with a 25% safety margin that meant performing at 1,500 bar.

    For the dive Omega strapped the Ultra Deep watches with polyamide and Velcro, a combination it links to the straps used on Apollo missions.

    Generations and strap changes

    1. 2025
      Ref. 217.30.42.21.01.001

      Fourth generation, presented to the press in Miami: 42 x 13.8 x 47.5 mm steel, calibre 8912 with 60-hour power reserve, 600 m water resistance, no date and no helium escape valve.

    2. 2016
      Ref. 215.30.44.21.01.001 (43.5 mm)

      Ref. 215.30.44.21.01.001 (43.5 mm): Master Chronometer calibre 8900, 16.09 mm thick.

      21 mm between the lugs and 49.00 mm lug to lug per Omega; foldover clasp with comfort setting and diver extension.

    3. 2013
      Planet Ocean GMT ref. 232.30.44.22.01.001

      A 24-hour bezel instead of a diving scale and calibre 8605, still rated 600 m.

      ref. 232.30.44.22.01.001 is 21 mm between the lugs and 49.20 mm lug to lug per Omega.

    4. 2011
      Ref. 232.30.42.21.01.001

      Second-generation 42 mm in steel with calibre 8500, 15.80 mm thick per Omega's sheet.

      Omega lists 20 mm between the lugs; the bracelet has a foldover clasp with diver extension.

    5. 2009
      Ref. 222.30.42.20.01.001

      Limited to 1,948 pieces, the first Planet Ocean with a Liquidmetal ceramic bezel and a full ZrO2 ceramic dial, still on calibre 2500.

    6. 2005
      Ref. 2201.50 (42 mm)

      The original steel Planet Ocean: matte black dial, aluminium bezel, calibre 2500 co-axial, 600 m. Hodinkee reports it cost $3,400 on the bracelet in 2005.

      Offered on leather, rubber or a model-specific bracelet with curved top surfaces.

    About Omega

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

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

    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.