WTT Precista Italian PRS-20 for Marathon GSAR with bracelet

I am the first owner: THE PASSAGE OF TIME: UNWRAPPING THE PRECISTA ITALIAN PRS20

Watch in excellent condition with just light hairline swirls from normal light wearing. Includes an extra chestnut color leather strap. The box exterior however is a rather worn out.

I am looking for an excellent condition Marathon GSAR with bracelet.