Iwc Portugieser 81905 42 mm: what to check on a used piece

Iwc Portugieser 81905 42 mm is the reference in this note. Inspect the crown and the case flank as a pair. The crown should sit centered between the guards, and the guards should be the same height. A guard that is shorter has been filed or knocked. The tube around the crown should not show a pale ring of bare metal unless the whole flank is brushed the same way. Run a fingernail along the lug top. Sharp edges that suddenly go round are a polish job. Polishing is common on a used case and it changes the shape, so describe it instead of ignoring it. Open the clasp and read any numbers stamped inside. They will not always match a serial you hoped to see. Write what is there. Look at the end links for a gap at the case and for screws that are chewed. A chewed screw means the bracelet was removed with the wrong tool. That is a useful fact about the life of the piece. It is not a reason to invent a story about the rest of the watch.

How it differs

Iwc Portugieser 81905 42 mm is a pilot layout: a readable dial, a long lug, and usually a large crown. Check that the crown clears the back of the hand when the watch is worn, and that the lug length is what you measured, not what a listing claimed. People change straps on pilot cases often. The lug width has to match the strap. Write the width in millimeters.

What to check on a used piece

What to check on a used Iwc Portugieser 81905 42 mm starts with the engraving. The reference to read is 81905. Measure the case. Listings often say 42 mm, and the ruler is the check. Then check end-link play, clasp fold, and whether the hands pass each other. There is no price in this note.

Common mods

Common changes are a new strap, a larger or smaller crown that was fitted during a repair, and a crystal. The lug width decides which strap belongs. Measure it instead of trusting the holes already punched.

What people change

On the Iwc Portugieser 81905 42 mm, people change the bracelet, the case, or the movement.