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6238 vs 6241
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| Specification | ||
|---|---|---|
| Nickname | Pre-Daytona | Paul Newman |
| Production | 1963–1969 | 1965–1969 |
| Era | Pre-Daytona chronograph | Acrylic-bezel Cosmograph |
| Status | discontinued | discontinued |
| Case diameter | 36mm | 37mm |
| Case material | Stainless steel (also gold) | Stainless steel (also gold) |
| Bezel | Engraved metal tachymeter | Black acrylic tachymeter |
| Crystal | Acrylic | Acrylic |
| Water resistance | 50m | 50m |
| Dial | Silver or black | Silver or black; exotic variant |
| Hands | Baton | — |
| Lume | Tritium | — |
| Movement | Manual | Manual |
| Caliber | 72B / 722 | 722-1 |
| Manufacturer | Rolex (Valjoux base) | Rolex (Valjoux base) |
| Winding | manual | manual |
| Functions | Chronograph, tachymeter | Chronograph, tachymeter |
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