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    Tudor Black Bay Fifty-Eight M79030N-0001

    WatchReference M79030N-0001
    20 mm
    Standard strap width
    20 mm

    The Tudor Black Bay Fifty-Eight has a 20 mm lug width.

    ✓ Confirmed by two independent references
    See all 20 mm watches How to measure

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    Strap and attachment

    Lug width
    20 mm
    Attachment type
    Spring barsTo confirm
    Drilled lugs
    YesTo confirm

    The watch

    Brand
    Tudor
    Collection
    Black Bay 58
    Model
    Black Bay Fifty-Eight
    Reference
    M79030N-0001
    Version
    Steel, black dial, riveted steel bracelet
    Type
    Watch
    Case size
    39 mm

    Story

    History

    The Black Bay Fifty-Eight is named after 1958, the year Tudor released its first diver waterproof to 200 metres: the ref. 7924, known as the 'Big Crown'.

    Tudor introduced the Black Bay Fifty-Eight at Baselworld 2018 in a 39 mm case, smaller than the original Black Bay, sized to match 1950s Tudor proportions.

    The newer Black Bay 58 is thinner than the 2018 model, with two lines of dial text and Master Chronometer certification by METAS.

    What it brought to the industry

    Tudor presents the Black Bay 58 18K (solid yellow gold) and the 925 (silver case) as firsts for a Tudor diver.

    The ref. 7924 of 1958, the namesake of the Fifty-Eight, was Tudor's first diver waterproof to 200 m.

    Other versions

    ReferenceWhat is differentStrap size
    79030B-0001Black Bay Fifty-Eight Navy BlueNavy blue dial and bezel in the same steel case, on a bracelet.Not verified
    79018V-0001Black Bay Fifty-Eight 18KSolid 18k yellow gold case with a green-gold dial and an open caseback.Not verified
    79010SG-0001Black Bay Fifty-Eight 925Sterling silver case with a taupe dial.Not verified
    79012M-0001Black Bay Fifty-Eight BronzeBronze case with a brown-bronze dial.Not verified
    M7939A1A0RU-0001Black Bay 58 (new generation) burgundyNewer, thinner Master Chronometer generation with a burgundy dial and bezel.Not verified
    M7939G1A0NRU-0001Black Bay 58 GMTGMT version with a bidirectional black and burgundy bezel and a mid-size GMT calibre.Not verified

    More references in the same line

    Questions

    What strap size does the Tudor Black Bay Fifty-Eight take?

    A 20 mm strap. Lug width is the gap between the lugs, and the strap must match it exactly.

    How does the strap attach on the Tudor Black Bay Fifty-Eight?

    Spring bars. System: Spring bar lugs 20 mm.

    Also 20 mm

    All 20 mm lug width watches

    More from Tudor

    All Tudor lug widths

    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.

    Where this comes from

    WatchBase, Bernard Watch, Delugs, Tudor.