Genuine Casio G-300, G-310B, G-350 and G-306X black resin watch strap (Casio strap code: 687-EJ1-16 Casio part no:10188556) - fits Casio G-300, G-310B, G-350, G-306X and variants as follows If you provide us with your Casio watch model number (as printed on the back of your watch case) we will be able to help.
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