Nomos Tetra

The strap size depends on the reference. Yours is engraved on the case back or between the lugs at 6 o'clock.

18 or 20 mm

Verification: Two sources agree on ref. 408, 401 and 3 more

27.5 to 29.5 mm cases

Filter references by lug width

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

Collection34 references
18 mm
Illustration drawn to scale: 29.5 mm case, 18 mm lugs

34 Nomos Tetra references

Nomos Tetra 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.

  • 408

    Tetra

    Lug width: 18 mm

    Source: Two sources

    Case size: 29.5 mmgalvanized, white silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Two sources agree
  • 406

    Tetra

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmgalvanized, white silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 401

    Tetra 27

    Lug width: 18 mm

    Source: Two sources

    Case size: 27.5 mmgalvanized, white and gray silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Two sources agree
  • 401.GB

    Tetra 27

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white and gray silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 410

    Tetra 27 duo

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white and gray silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 410.GB

    Tetra 27 duo

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white and gray silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 405

    Tetra 27 duo doré

    Lug width: 18 mm

    Source: Two sources

    Case size: 27.5 mmgalvanized, white silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Two sources agree
  • 405.GB

    Tetra 27 duo doré

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 402

    Tetra 27 white

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 402.GB

    Tetra 27 white

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white silver-plated dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 440

    Tetra Basalt

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmanthracite dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 440.SB

    Tetra Basalt

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmanthracite dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 489

    Tetra Clärchen

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmgreen dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 418

    Tetra gold 27

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white silver-plated dialCase material: gold 18 kt

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 419

    Tetra gold 27 doré

    Lug width: 18 mm

    Source: Database

    Case size: 27.5 mmgalvanized, white silver-plated dialCase material: gold 18 kt

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 494

    Tetra Grenadine

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmgrenadine red dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 448

    Tetra Immortal Beloved

    Lug width: 18 mm

    Source: Database

    Case material: Steel

    Attachment
    Strap; spring bars
    Style
    dress
    Movement
    Automatic
    Caseback
    Display back
    Status
    Listed in our database, not yet verified
  • 478

    Tetra Matcha

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmmatcha green dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 421

    Tetra Neomatik 39

    Lug width: 20 mm

    Source: Database

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 437

    Tetra Ochra

    Lug width: 18 mm

    Source: Database

    Case material: Steel

    Attachment
    Strap; spring bars
    Style
    dress
    Movement
    Automatic
    Caseback
    Display back
    Status
    Listed in our database, not yet verified
  • 437.SB

    Tetra Ochra

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmocher yellow dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 493

    Tetra Pearl

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmrose dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 439

    Tetra Salvia

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmsage green dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 439.SB

    Tetra Salvia

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmsage green dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 438

    Tetra Terra

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmterracotta red dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 438.SB

    Tetra Terra

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmterracotta red dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 425

    Tetra, Die Fuchsteufelswilde

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmaubergine, seconds dial rose goldCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 475

    Tetra, Die Fuchsteufelswilde

    Lug width: 18 mm

    Source: Two sources

    Case size: 29.5 mmaubergine, seconds dial rose goldCase material: stainless steel

    Attachment
    classic lugs
    Status
    Two sources agree
  • 424

    Tetra, Die Kapriziöse

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmnude dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 474

    Tetra, Die Kapriziöse

    Lug width: 18 mm

    Source: Two sources

    Case size: 29.5 mmnude dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Two sources agree
  • 427

    Tetra, Die Unerreichbare

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmsilvercut polish, seconds dial roseCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 477

    Tetra, Die Unerreichbare

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmsilvercut polish, seconds dial roseCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 426

    Tetra, Die Wildentschlossene

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmrose dialCase material: stainless steel

    Attachment
    classic lugs
    Status
    Listed in our database, not yet verified
  • 476

    Tetra, Die Wildentschlossene

    Lug width: 18 mm

    Source: Database

    Case size: 29.5 mmrose dialCase material: stainless steel

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

FAQ

What lug width does the Nomos Tetra use?

Nomos Tetra lug width: 18 or 20 mm depending on the reference. The most common is 18 mm (33 of the 34 references with a listed width in our database). Find your exact reference in the table below. The Nomos Tetra ref. 408, 401 and 3 more take 18 mm (two independent sources agree).

Do all Nomos Tetra references take the same strap?

No. 2 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.

Where do these Nomos Tetra lug widths come from?

From our database, which lists 34 Nomos Tetra references, 34 of them with a listed width. Each reference card says whether the maker lists the width, two independent sources agree on it, or it is not yet verified.

Other Nomos 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.