Nurse Lapel Watch - Helen Mirren - Arthur
The exact brand and model are not know, but it looks very similar to the pictured Pedre nurse watch on the left, with a rectangle top part (which hides the pin), a small chain and round watch with white dial.
Nurse watches, or lapel watches, are a type of watch once designed for and popular with nurses, because the watch is hanging upside down, so can be easily read by just glancing down and are more hygienic because they will not get wet during the frequent hand washing. Some nurse watches have a glow in the dark dial, a pulsation scale and military time markings (24h). Popular designs on nurses watches are hearts, a red cross, dolphins and cartoon characters.
For the Pedre nurse watch, click here, or for other nurse watches, click here (UK visitors click here). On eBay you can find the biggest selection of nurse watches, including some nice vintage models.