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Model 1824. NATO/ZULU watch strap adapter for Casio G-shock watches for 18mm lugs (such as GW200 Frogman). Also may fit Protrek series watches such as PRG-270. Fits up to 24 mm straps. Pin hole fits approx 2mm pins. 2 adapters included.
Disclaimer: Steel versions may include nickel and are not rustproof.