Vintage Certinas keep getting more and more attention from collectors. The Argonaut 280s are no exception.
They have size and colored details, like this brown dialed one.
The date window is at 6, the cross hairs and the texting above and below the horizontal line ads to the style of these watches.

The overall condition of the case is good, especially considering the high age.

Observations:
This watch works but needs revision.
He works slowly so it delays.

Manufacturer: Certina
Model: Argonaut 280
Material: Stainless steel case with screw back case
Watch glass: acrylic crystal
Bracelet: leather
Type of clasp: pin buckle
Diameter: 37 x 41 x 11 mm
Caliber name: in-house 25-661 Certina
Movement type: manual wound
Overall condition: 7 - worn regularly - light signs of wear

If you have any doubt just ask before you bid.
Sold as shown.