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310.30.42.50.01.001 vs 145.022
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| Specification | ||
|---|---|---|
| Production | 2021–present | 1968–1988 |
| Era | Caliber 3861 (sapphire) | Caliber 861 transition |
| Status | current | discontinued |
| MSRP | $7,600 (2023, sapphire sandwich) | — |
| Case diameter | 42mm | 42mm |
| Case material | Stainless steel | Stainless steel |
| Bezel | Tachymeter | Tachymeter (dot-over-90 on early examples) |
| Bezel material | Black aluminium (anodised) | Black aluminium |
| Crystal | Sapphire (sapphire caseback) | Acrylic (Hesalite) |
| Caseback type | Display (sapphire) | Screw-down solid, engraved |
| Water resistance | 50m | 50m |
| Dial | Black (step dial) | Black |
| Dial text | — | 'Professional'; stepped and flat dial variants |
| Hour markers | Applied Omega logo | — |
| Hands | Straight (baton) | Straight (baton) |
| Lume | Super-LumiNova | Tritium |
| Lume type | Super-LumiNova | Tritium |
| Movement | Manual chronograph | Manual chronograph |
| Caliber | 3861 | 861 |
| Manufacturer | Omega | Omega (Lemania base) |
| Winding | manual | manual |
| Power reserve | ~50 hours | ~48 hours |
| Frequency | 21,600 vph | 21,600 vph |
| Jewels | — | 17 |
| Complications | Chronograph, tachymeter | Chronograph, tachymeter |
| Functions | Chronograph, tachymeter | Chronograph, tachymeter |
Compare 310.30.42.50.01.001 with another generation