Its a BHP Broken Hill 1963 presentation watch, see the engraving on the case back. Works but only tested very briefly & hasn’t been tested for time & may need at least a service, has sat idle for years. The serial number on the movement dates it to 1962. Case is 34mm in diameter, lugs 18mm. The dial has spotting & the case is worn. Possibly fitted with it’s original strap.
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