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Casio PRG-40B Watch Strap - Black - O/M
Casio black synthetic leather with a blue woven nylon middle (Casio part no:10036575) - for PRG40, PRG40B casio watch as follows:
Width across strap at connection point is 18mm.
Please note the PRG-40B watch strap is obsolete and is no longer available. The nearest replacement would be the resin watch strap for the PRG-40.