My Expy crown has never come open on its own.
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16610 Submariner Date; D Serial
16234 DateJust SS with WG Fluted Bezel & Jubillee, White Roman Dial; F Serial
16570 Explorer II White Dial; M Serial
And Hers: 78240 Mid-Size DateJust SS with Domed Bezel & Oyster, White Roman; D Serial
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