I received a Longines watch as a gift and can't seem to find any popular retailers that sell this model. Hoping that's not a bad sign... The back of the watch has "L4 291 8" and the tag says "L42918212". Should they match? Serial number is 34142751 (on back of case and tag). I love the watch...

Longines makes such classic looks, but if you had to choose a favorite would you rather a Longines watch with a square or round face? Also, what's your strap preference? In all honesty, there's no wrong answer.