(Duelist) Precise strike + (Magus) Spell Combat ?

[Konton2000]

For the prestige class Duelist the ability Precise Strike the has the requirement "When making a precise strike, a duelist cannot attack with a weapon in her other hand or use a shield".

Now the Magus ability Spell Combat "This functions much like two-weapon fighting, but the off-hand weapon is a spell that is being cast"

My question is this, does the this mean the spell is literally a weapon in the case off preventing Precise strike from working, if so does it mean while for the round the spell is being cast?

Magus
Duelist

[RCM]

No, that rule applies only to real physical objects held in your off hand, also see the following thread.

Link.