Tudor · Heritage Chrono
Tudor Heritage Chrono 70330
Reference M70330B-0003 · Chronograph · 42 mm Discontinued
Specifications
- Reference
- M70330B-0003
- Family
- Heritage Chrono
- Category
- Chronograph
- Status
- Discontinued
- Case material
- Stainless steel
- Case diameter
- 42 mm
- Case thickness
- 12.7 mm Third-party
- Lug-to-lug
- 50 mm Third-party
- Lug width
- —
- Water resistance
- 150 m
- Bezel
- Rotating, 24 h (GMT)
- Calibre
- 2892 (chronograph module) Official
- Power reserve
- about 42 h
Official product page · retrieved October 21, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
Comfortable
Lug-to-lug 50 mm on a flat top of 54.1 mm: 92 % of the width.
Lug-to-lug is 75 to 95% of the flat top, the usual comfortable range.
Measurements and sources
Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.
Case thickness
| Value | Type | Source | Date |
|---|---|---|---|
| 12.7 mm | Third-party | The 1916 Company Tudor publishes no thickness for this case; the review that gives the lug-to-lug reads "measures 12.7mm in thickness and 50mm from lug-to-lug". | October 24, 2026 |
Lug-to-lug
| Value | Type | Source | Date |
|---|---|---|---|
| 50 mm | Third-party | The 1916 Company Review titled "Tudor Heritage Chronograph 70330N-0004 Review": "measures 12.7mm in thickness and 50mm from lug-to-lug". Median of 2 reviews of this case. | October 24, 2026 |
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
No source gave this figure yet.
Calibre source
Official Tudor · retrieved October 21, 2026
Other versions in the same case
These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.
- M70330B-0004 · Blue dial, bracelet · discontinued
- M70330N-0003 · Black dial, fabric strap · discontinued
- M70330N-0004 · Black dial, fabric strap · discontinued
- M70330N-0005 · Black dial, bracelet · discontinued
- M70330N-0006 · Black dial, bracelet · discontinued
Other Tudor models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Black Bay Chrono Carbon 42 M79377KN-0003 | 42 mm | 14.3 mm | — | MT5813 |
| Black Bay Chrono M79360N-0014 | 41 mm | 14.4 mm | 50 mm | MT5813 |
| Black Bay Chrono S&G M79363N-0001 | 41 mm | 14.4 mm | 50 mm | MT5813 |
| Pelagos FXD Chrono M25827KN-0001 | 43 mm | 13.2 mm | 52 mm | MT5813 |
| Black Bay Chrono 39 M79310N-0001 | 39 mm | 13.1 mm | — | MT5813 |
| Pelagos FXD GMT M2542GXX7NU-0002 | 42 mm | 12.7 mm | 51 mm | MT5652-U |
Show 55 more
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Black Bay GMT M79830RB-0001 | 41 mm | 14.6 mm | 50 mm | MT5652 |
| Black Bay GMT S&G M79833MN-0001 | 41 mm | 14.6 mm | 50 mm | MT5652 |
| Black Bay 58 GMT M7939G1A0NRU-0001 | 39 mm | 12.8 mm | 47.3 mm | MT5450-U |
| Black Bay P01 70150 M70150-0001Discontinued | 42 mm | 14.4 mm | 55.7 mm | MT5612 |
| Black Bay Pro M79470-0004 | 39 mm | 14.6 mm | 47.2 mm | MT5652 |
| Northflag M9140G1A0U-0001 | 40 mm | 12.7 mm | 48.8 mm | MT5652-U |
| Ranger M79950-0001 | 39 mm | 12 mm | 47 mm | MT5402 |
| Pelagos 42 M25600TB-0001 | 42 mm | 14.3 mm | 50 mm | MT5612 |
| Pelagos FXD M25717N-0001 | 42 mm | 12.8 mm | 52 mm | MT5602 |
| Pelagos LHD M25610TNL-0001 | 42 mm | 14.3 mm | 50 mm | MT5612-LHD |
| Black Bay M7941A1A0NU-0003 | 41 mm | 13.6 mm | 49 mm | MT5602-U |
| Black Bay 68 M7943A1A0NU-0001 | 43 mm | 13.6 mm | 51.8 mm | MT5601-U |
| Heritage Ranger 79910 M79910-0006Discontinued | 41 mm | 14.9 mm | 48.3 mm | ETA 2824-2 |
| Black Bay Bronze M79250BA-0001 | 43 mm | 14.6 mm | 52.7 mm | MT5601 |
| Black Bay Ceramic M7941A1ACNU-0001 | 41 mm | 13.6 mm | 49 mm | MT5602-U |
| Black Bay Ceramic (MT5602-1U) M79210CNU-0001 | 41 mm | 14.4 mm | 50 mm | MT5602-1U |
| Pelagos Ultra M2543C1A7NU-0001 | 43 mm | 14.5 mm | 52 mm | MT5612-U |
| Black Bay 58 M7939A1A0NU-0002 | 39 mm | 11.7 mm | 47.8 mm | MT5400-U |
| Ranger 36 M79930-0007 | 36 mm | 11 mm | 44 mm | MT5400 |
| Black Bay 58 18K M79018V-0006 | 39 mm | 12.7 mm | 47.8 mm | MT5400 |
| Black Bay 58 925 M79010SG-0002 | 39 mm | 12.7 mm | 47.8 mm | MT5400 |
| Black Bay 58 Bronze M79012M-0001 | 39 mm | 11.9 mm | 47.8 mm | MT5400 |
| Pelagos 39 M25407N-0001 | 39 mm | 11.8 mm | 47 mm | MT5400 |
| Black Bay 79230 M79230B-0001Discontinued | 41 mm | 16.1 mm | 49.8 mm | MT5602 |
| Black Bay Steel 79730 M79730-0003Discontinued | 41 mm | 14.8 mm | 50 mm | MT5612 |
| 1926 M91650-0001 | 41 mm | 9.3 mm | — | T601 |
| Black Bay 41 M79680-0002 | 41 mm | 12.2 mm | 50.2 mm | MT5601 |
| Black Bay S&G 79733N M79733N-0001Discontinued | 41 mm | 14.9 mm | 50 mm | MT5612 |
| Black Bay 41 S&G M79683-0001 | 41 mm | 12.2 mm | — | MT5601 |
| Royal M2840D1A0-0001 | 40 mm | 11.4 mm | — | MT5633 |
| Black Bay 54 M79000B-0001 | 37 mm | 11.2 mm | 45.8 mm | MT5400 |
| Royal 40 S&G M2840D1A3-0002 | 40 mm | 11.4 mm | — | MT5633 |
| 1926 39 M91550-0001 | 39 mm | 9.2 mm | — | T601 |
| 1926 Luna M91560-0002 | 39 mm | 10.1 mm | — | T607-9 |
| Black Bay 39 M79660-0002 | 39 mm | 12 mm | 47.3 mm | MT5602 |
| Monarch M2639W1A0U-0001 | 39 mm | 11.9 mm | 46.2 mm | MT5662-2U |
| Black Bay 39 S&G M79663-0001 | 39 mm | 12 mm | 47.3 mm | MT5602 |
| Heritage Advisor 79620 M79620T-0010Discontinued | 42 mm | 14 mm | 49.5 mm | 2892 (alarm module) |
| Black Bay 41 79540 (2824) M79540-0004Discontinued | 41 mm | 11 mm | 49.9 mm | ETA 2824-2 |
| Black Bay 41 79540 (T600) M79540-0011Discontinued | 41 mm | 11 mm | 50.1 mm | T600 |
| 1926 28 M91350-0011 | 28 mm | 9.1 mm | — | T201 |
| 1926 36 M91450-0001 | 36 mm | 9.2 mm | 44 mm | T601 |
| Black Bay 31 M79600-0001 | 31 mm | 9.5 mm | 37.8 mm | MT5201 |
| Black Bay 36 M79640-0002 | 36 mm | 10.5 mm | 43.9 mm | MT5400 |
| Clair de Rose 26 M35200-0009 | 26 mm | 10.3 mm | — | T201 |
| Clair de Rose 30 M35500-0009 | 30 mm | 10.7 mm | — | T201 |
| Clair de Rose 34 M35800-0009 | 34 mm | 11.1 mm | — | T601 |
| Royal 30 M2830A1A0-0001 | 30 mm | 8.7 mm | — | MT5201 |
| Royal 36 M2836C1A0-0102 | 36 mm | 9.7 mm | — | MT5412 |
| 1926 28 S&G M91351-0011 | 28 mm | 9.1 mm | — | T201 |
| Black Bay 31 S&G M79603-0001 | 31 mm | 9.5 mm | 37.8 mm | MT5201 |
| Black Bay 36 S&G M79643-0001 | 36 mm | 10.5 mm | 43.9 mm | MT5400 |
| Royal 30 S&G M2830A1A3-0003 | 30 mm | 8.7 mm | — | MT5201 |
| Royal 36 S&G M2836C1A3-0002 | 36 mm | 9.7 mm | — | MT5412 |
| Black Bay 36 79500 (T600) M79500-0013Discontinued | 36 mm | 10.4 mm | 44 mm | T600 |