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Generic Rolex 216570 Tube — aftermarket crown tube compatible with Rolex Explorer II reference 216570, featuring part number B24-7230-0-G1 and dual-thread specifications (5.0 × 2.35 mm + 3.0 × 1.45 mm). Provides secure crown attachment and waterproof sealing for Rolex Explorer II case. Brand new.
| Parameter | Value |
|---|---|
| Brand | Generic (Aftermarket) |
| Product | Crown Tube |
| Part Number | B24-7230-0-G1 |
| Compatibility | Rolex Explorer II 216570 |
| Thread Specifications | 5.0 × 2.35 mm + 3.0 × 1.45 mm |
| Function | Crown Attachment, Waterproof Sealing |
| Condition | Brand New |
Q1: Is this a genuine Rolex OEM part?
A: No — this is a generic aftermarket crown tube compatible with Rolex Explorer II 216570. It is not manufactured by Rolex. The term “Rolex” refers to the compatibility with Rolex watch models, not the brand origin. The part number B24-7230-0-G1 is provided for identification purposes.
Q2: What Rolex model does this tube fit?
A: This crown tube is specifically designed for Rolex Explorer II reference 216570. The Explorer II 216570 is the 42mm Explorer II model introduced in 2011 with the orange 24-hour hand. Always verify your Rolex reference number (engraved on case back or between lugs at 12 o’clock) before purchase.
Q3: What does 5.0 × 2.35 + 3.0 × 1.45 mean?
A: These are dual-thread specifications: 5.0 × 2.35 mm is the outer thread that screws into the watch case, and 3.0 × 1.45 mm is the inner thread where the crown stem passes through. This larger thread size indicates this is for a larger Rolex case like the 42mm Explorer II 216570, distinguishing it from smaller Rolex models.
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