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126600 vs 1665
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| Specification | ||
|---|---|---|
| Nickname | SD43 | Double Red / Great White |
| Production | 2017–present | 1967–1983 |
| Era | 43mm, Cyclops added | First Sea-Dweller |
| Status | current | discontinued |
| Case diameter | 43mm | 40mm |
| Case material | Oystersteel | Stainless steel |
| Bezel | Unidirectional 60-minute Cerachrom | Unidirectional 60-minute |
| Bezel material | Ceramic (Cerachrom) | Aluminium insert |
| Crystal | Sapphire with Cyclops | Acrylic (no Cyclops) |
| Crown | Triplock; helium escape valve | Triplock; helium escape valve |
| Caseback type | Screw-down solid | Screw-down solid, engraved |
| Water resistance | 1220m | 610m |
| Dial | Black | Black |
| Dial configuration | Red 'Sea-Dweller' text (50th-anniversary revival) | Double-red text (DRSD) early, then single-line 'Great White' |
| Hands | Maxi Mercedes hands | Mercedes hands |
| Lume | Chromalight | Tritium |
| Lume type | Chromalight | Tritium |
| Movement | Automatic | Automatic |
| Caliber | 3235 | 1575 |
| Manufacturer | Rolex | Rolex |
| Winding | automatic | automatic |
| Power reserve | ~70 hours | — |
| Functions | Hours, minutes, seconds, date | Hours, minutes, seconds, date |
| Bracelet | Oyster with Glidelock | — |
| Bracelet material | Oystersteel | — |
| Aliases | — | DRSD |
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