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6538 vs 124060
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| Specification | ||
|---|---|---|
| Nickname | Big Crown | — |
| Production | 1955–1959 | 2020–present |
| Era | 1950s big-crown divers | Ceramic 41mm |
| Status | discontinued | current |
| Case diameter | 38mm | 41mm |
| Lug width | — | 21mm |
| Case material | Stainless steel | Oystersteel |
| Construction | — | Slimmer lugs than 114060 Super Case |
| Bezel | Bidirectional 60-minute (early) diver bezel | Unidirectional 60-minute Cerachrom |
| Bezel material | Aluminium insert | Ceramic (Cerachrom) |
| Crystal | Acrylic | Sapphire |
| Crown | Oversized 8mm 'Big Crown' Twinlock, no crown guards | Triplock, with crown guards |
| Caseback type | Screw-down solid | Screw-down solid |
| Water resistance | 200m | 300m |
| Dial | Black | Black |
| Dial configuration | Gilt gloss, 4-line / 2-line variants | Maxi dial, 4-line |
| Hour markers | Painted with gilt surrounds | Applied white-gold-surround |
| Hands | Pencil hands | Mercedes hands |
| Lume | Radium | Chromalight (blue) |
| Lume type | Radium | Chromalight |
| Movement | Automatic | Automatic |
| Caliber | 1030 | 3230 |
| Manufacturer | Rolex | Rolex |
| Winding | automatic | automatic |
| Power reserve | — | ~70 hours |
| Frequency | — | 28,800 vph |
| Functions | Hours, minutes, seconds | Hours, minutes, seconds |
| Bracelet | — | Oyster with Glidelock extension |
| Bracelet material | — | Oystersteel |
| Clasp | — | Oysterlock safety clasp |
| Aliases | 6538A | — |
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