Casio 300m 328MQD-3000
 Produced during the late 1970s early 1980s
 steel case with titanium finish
 Shape very inspired by seiko tuna of the time, example 7540-7010
 Watch revised and guaranteed 6 months,
 Replacement ETA quartz movement, replacement crown
 Sold with invoice
 Stainless steel case and back
 Diameter excluding crown 45.5mm by 42.5mm
 Thickness 14 mm
 Black dial blurred in places by time, an impact above the index at 4:00 p.m. visibly at the base of the dial
 Original mineral glass, with some micro scratches
 Polyurethane strap  new original casio
 Rather rare watch, sold between 800 and 1500 € depending on the condition, see screenshot in the last photo (ebay)
 
 Here is a Youtube video presenting this model:
 https://youtu.be/uP6qnRetcPE
 15 € Sending the watch in a parcel  national insured France  and 20 € international parcel with insurance