Longines
Longines Legend Diver 42 Strap Size — 22mm Lug Width
The Longines Legend Diver 42 has a 22mm lug width, so it takes a 22mm watch strap.
Lug width22mm
| Lug width | 22 mm |
|---|---|
| Case size | 42 mm |
| Lug-to-lug | 52.6 mm |
| Thickness | 12.7 mm |
| Spring bar Ø (typical) | Not confirmed |
| End type | Straight |
Which reference do you have?
Similar-looking models can take different straps. Your reference number is on the case back or your papers.
| Model | Case | Strap |
|---|---|---|
| Legend Diver 42 (L3.774) | 42mm | 22mm |
| Legend Diver 36 | 36mm | 19mm |
Strap styles that fit
- NATO / Zulu22mm fits if the strap's thickness clears the case under the bars.
- PerlonWoven pass-through, 22mm.
- 2-piece leatherStraight ends fit flush.
- Rubber / siliconeDivers & sports fit well.
- Milanese / meshStraight-end 22mm mesh fits.
- Metal braceletNeeds 22mm end-links shaped for this case.
▲ The 42mm Legend Diver takes 22mm straps; the smaller 36mm version is 19mm.
Fit & sizing notes for the Legend Diver 42
- Width: buy 22mm straps. Tapered straps listed as 22/20mm or 22/18mm fit too; only the first number has to match. See strap sizes explained.
- Spring bars: 22mm long. We haven't confirmed the diameter for this model, so measure the old bar before buying replacements (spring bar sizes).
- Wrist fit: at 52.6mm lug-to-lug it should sit within the top of wrists from about 17.5cm up (rule of thumb: lug-to-lug under ~30% of wrist size). That's longer than 96% of the watches in our index. See what size watch suits your wrist.
- Strap thickness: at 12.7mm thick it's a chunky case: thicker padded leather, rubber/FKM or a heavier NATO balance it visually; very thin straps can look undersized.
Sources & corrections
Lug width checked against: Professional Watches: 2022 Legend Diver; Safa Jewelers: Legend Diver L3.774.4.50.0. Last checked 26 October 2026.
Spec wrong for your watch? Send us a correction with your reference number.
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Longines Legend Diver 42 — strap questions
What size strap does the Legend Diver 42 take?
The Longines Legend Diver 42 has a 22mm lug width, so you need a 22mm watch strap.
Will any 22mm strap fit the Legend Diver 42?
Most will. Width is the main thing to match, but also check that the strap's spring-bar holes suit the bars, and that the strap is thin enough to clear the case between the lugs. A metal bracelet needs 22mm end-links made for this model.
What spring bar size does the Legend Diver 42 use?
22mm long. We haven't confirmed the diameter for the Legend Diver 42, so measure the original bar with calipers before buying replacements.
Is the Legend Diver 42 good for strap swapping?
Yes. With standard 22mm spring-bar lugs, NATO, leather, rubber and mesh straps can all be fitted with a spring-bar tool.