Specifications
- Reference
- 740L.370
- Family
- Primus
- Category
- Chronograph
- Status
- Current
- Case material
- Stainless steel
- Case diameter
- 44 mm
- Case thickness
- 15 mm Official
- Lug-to-lug
- —
- Lug width
- —
- Water resistance
- 100 m
- Bezel
- —
- Calibre
- SW510 Official
- Power reserve
- about 62 h
- Frequency
- 28,800 vph (4 Hz)
Official product page · retrieved October 22, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
No lug-to-lug figure exists for this reference yet, so fit cannot be computed.
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 |
|---|---|---|---|
| 15 mm | Official | Hanhart | October 22, 2026 |
Lug-to-lug
No source gave this figure yet.
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 Hanhart · retrieved October 22, 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.
Other Primus references
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Primus Pilot 44 mm 740.210 | 44 mm | 15 mm | — | HAN3809 |
| Primus Racer 44 mm 741.210 | 44 mm | 15 mm | — | HAN3809 |
Other Hanhart models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Pioneer MonoScope 45 mm 732.220 | 45 mm | 16 mm | — | HAN4212 |
| Racemaster GT 45 mm 736.600 | 45 mm | 16 mm | — | HAN4011 |
| 417 ES 42 mm H721.210 | 42 mm | 13.3 mm | — | SW510 M |
| 417 ES Flyback 42 mm H721.201 | 42 mm | 13.3 mm | — | AMT5100 M |
| 417 ES Heritage Flyback 42 mm H721.212 | 42 mm | 13.3 mm | 49.75 mm | AMT5100 M |
| 417 ES Moby Dick 42 mm H721.202 | 42 mm | 13.3 mm | — | SW510 M |
Show 20 more
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| 417 ES Mocha Flyback Date 42 mm H721L.282 | 42 mm | 13.5 mm | 49.75 mm | AMT5100 M |
| ADAC Eifelrennen Anniversary Edition 42 mm 724.200-HFXX | 42 mm | 14.4 mm | 49 mm | SW510 |
| 417 TI Desert Pilot 42 mm H721L.250 | 42 mm | 13.6 mm | 49 mm | AMT5100 M |
| Pioneer 40 mm 716.200 | 40 mm | 15 mm | — | HAN3703 |
| Pioneer Mk I 40 mm 714.200 | 40 mm | 15 mm | — | HAN3601 |
| 415 ES 39 mm H703.201 | 39 mm | 13.5 mm | 46 mm | SW510 M |
| 417 ES 1954 39 mm H701.210 | 39 mm | 13.3 mm | — | SW510 M |
| 417 ES Flyback 39 mm H701.211 | 39 mm | 13.3 mm | 46 mm | AMT5100 M |
| 417 ES Moby Dick 39 mm H701.202 | 39 mm | 13.6 mm | 46 mm | SW510 M |
| Red Lion Mk II 39 mm H704L.210-1010 | 39 mm | 13.6 mm | 46 mm | AMT5100 M |
| 417 TI Desert Pilot 39 mm H701L.250 | 39 mm | 13.6 mm | 46 mm | AMT5100 M |
| Fly Navy Aerosphere 42 mm 774.274 | 42 mm | 12.95 mm | 49 mm | P024 |
| Pioneer One 42 mm 762.200 | 42 mm | 12 mm | — | SW200 |
| Thermosphere 42 mm 775.274-6428 | 42 mm | 12.95 mm | 49 mm | — |
| Pioneer Preventor9 40 mm 752.200 | 40 mm | 12.5 mm | — | HAN4112 |
| Pioneer Preventor HD12 39 mm 792.810 | 39 mm | 10.5 mm | 46 mm | P024 |
| Pioneer Silva 38.5 mm 782.210 | 38.5 mm | 10 mm | 44 mm | — |
| Preventor HD12 36 mm 793L.890-6429 | 36 mm | 10.5 mm | 43 mm | SW200-1 |
| Aquasphere 42 mm 772.270 | 42 mm | 12.95 mm | 49 mm | P024 |
| Silva 38.5 mm 782.230 | 38.5 mm | 10 mm | 44 mm | P024 |