It's easily mistaken for a Meisterstuck, but is thinner than the 149 and about the same width as a Pelikan 800 pictured together:

The fit and finish are comparable to the German pens.
Filled, the Pilot is 26g, the 800 is 30g and the 149 is 38g
The 743 is longer than the 800 capped, but is slightly shorter posted, because the cap covers more of the barrel. This feature makes the 743 a secure posting pen, a characteristic the 149 does not share.
The 743 is long enough to write comfortably unposted and is well balanced posted. Of the 3, the 743 fits my hand the best posted and unposted.

It has a pump convertor and has the largest ink capacity of any convertor I've seen and efficiently fills the chamber in 5 pumps of the button which is located at the end of the convertor:

The 14 k mediumPilot nib is smooth, large and nicely engraved. Japanese nibs typically give a thinner line width than American/European nibs of the same nib size , but this medium is quite similar in width to most of my American and European mediums. I'll post a writing sample if I get a chance.

This pen may well become my favorite and is highly recommended.
Lucy also approves

Regards,
Jeen