So I posted a big long review of all the various pea-coats I've gotten my hands on in my search for a decent one, It was my first post on the forum and it seems to have disappeared. I'll try and just sum it up quick here.
I have bought or tried on many a pea-coat in the last few months. Here is the good and the bad.
Schott NYC 740 34R: Bought and returned. Seems well made and is probably true to size. I sized down one to the 34R and it was too tight, 36R was probably the way to go. Very heavy and thick! Way thicker fabric and lining. I just didn't like how rough and scratchy it was. Definitely the roughest feeling wool of all the ones I tried.
Schott NYC 753 slim fit small: Bought and returned. Very light weight coat, just a satin lining and thinner wool fabric. Much, much softer wool than regular Schott pea-coat. Small seemed like a good fit for a 36R. Didn't like the cheesy leather trim on the pockets and the buttons or something was sewed on crooked. It would do something really odd when buttoned up all the way.
Sterlingwear Authentic 36R: Tried on in the Boston store. Seemed true to size. They seem well made but I was just not super impressed with the softness of the fabric and the pocket linings seemed really cheap and weird, this applies to all the Sterlingwear coats I tried on.
Sterlingwear Classic 36R: Tried on, seemed true to size.
Sterlingwear Navigator 34R: Tried on, sized down to 34 felt good to me.
Filson Fairmount pea-coat, size XS: Purchased and returned. Super boxy and weird, short arms and huge torso. I bought the extra small as other Filson black label stuff in XS fits me really well, the pea-coat is just horrible though. Very disappointing fabric inside and out for $400.
J.Crew Bayswater pea-coat small: Bought and actually liked and have worn. Small seems good for a 36R, some room for layering. Nice details, backer buttons on main buttons, chin strap, nice soft wool and nice pocket linings. Only thing that bothers me is it's made in China.