Short answer: with a replica Apollo 13 Snoopy, everything hinges on the caseback. The real Speedmaster Silver Snoopy Award 50th Anniversary hides its best trick behind sapphire, a small Snoopy in a Command Module that circles a rotating Earth once the chronograph runs. Printing a Snoopy on a solid steel back is easy. Building that little scene, and making it move, is not. That one detail separates a serious replica from a $90 novelty, and it is the first thing I check.

What the original does

Omega built the 50th Anniversary Snoopy around a 42mm steel case, a blue ceramic bezel with a white enamel tachymeter scale, and a silver-toned dial with blue accents. Inside is the hand-wound Co-Axial Master Chronometer Calibre 3861, a METAS-certified movement with a 50-hour power reserve and resistance to magnetic fields of 15,000 gauss. It is a manual-wind chronograph, and that matters when you are judging a replica.

The watch exists because NASA astronauts gave Omega a Silver Snoopy Award in 1970. The crew of Apollo 13 used a Speedmaster to time a 14-second engine burn after an oxygen tank failed, and that timing helped bring them home.

The caseback is the whole test

On the genuine piece, the sapphire caseback carries a domed scene: Earth on one side, Snoopy in his Command Module on the other. Start the chronograph and the scene animates. Replicas handle this in three ways. The cheapest print a static Snoopy on a solid back. Mid-tier ones use a printed sapphire disc that never moves. The better ones attempt a real moving disc, usually driven off the chronograph seconds, and the motion is slower and jerkier than the original.

If a seller will not show you a video of the pusher being pressed with the back facing the camera, walk away.

Dial, bezel, and case checks

  • Dial: the silver finish should have fine vertical brushing that shifts in light. Replicas often look flat and gray.
  • Subdials: three, at 3, 6 and 9. No date window. A date at 3 means the factory built it on the wrong base.
  • Bezel: ceramic, with white enamel in the tachymeter. Painted blue aluminium or printed white numerals are the common shortcut.
  • Hands: blue with lume. The chronograph seconds hand should snap back to 12 when reset.
  • Case: 42mm, twisted lugs, pushers at 2 and 4, no crown guards.
  • Crystal: domed sapphire with inner anti-reflective coating on most versions.

Movement tiers

Three rough bands exist. Under $150 you get quartz or a low-grade automatic, thin plating, and a caseback that is decoration, not a mechanism. Between $250 and $450 you get a decent automatic chronograph with a decorated rotor, sharper case finishing, and a static Snoopy back. Above $500, the better makers use a hand-wound chronograph close in layout to the 3861, sapphire front and back, and some form of animated scene. None of them are the real movement. None of them are the real watch. What you are paying for is how the thing feels on the wrist and how it reads from two feet away.

What I would not ignore

Weight and thickness. A Speedmaster is a slim, flat watch, around 13mm thick, and a replica that sits tall on the wrist fools nobody who knows the model. Bracelet end links should sit flush against the lugs with no gaps you can catch a fingernail in. Check the clasp engraving too, since that is where cheap replicas fall apart first.

One last thing: counterfeits are restricted goods in most countries, and customs does seize them. Buy with that in mind, not as an afterthought.