Short answer

There is no genuine women's Speedmaster with Caliber 9300. Omega fits the 9300 to a 44.25 mm Speedmaster chronograph case, and the women's line is the 38 mm Speedmaster 38 with Caliber 3330. A listing for a "replica Speedmaster cal 9300 women's" therefore describes a hybrid: either a shrunken copy of a 9300 chronograph or a 38 mm case holding an engine that only resembles a 9300. Settle that question first, because it decides the size, the dial layout, and the price you should accept.

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What the two watches actually are

  • Caliber 9300 host watch: 44.25 mm case, automatic co-axial chronograph, two barrels, 60-hour power reserve, Si14 silicon balance spring.
  • Speedmaster 38: 38 mm case, Caliber 3330 automatic chronograph, the model most often sold as a women's Speedmaster.
  • The mismatch: a 9300 does not sit in a genuine 38 mm women's case, so a women's 9300 copy compromises on size, movement, or both.

Prerequisites

  • Wrist circumference in millimeters, taken around the wrist bone.
  • Reference photos of the genuine model you are matching: front, caseback, side profile.
  • A ruler or caliper for verifying what arrives.
  • A price ceiling tied to the movement type you are willing to accept.

Step 1: Set the target case size

  1. Measure your wrist with a tape.
  2. Write down 38 mm and 44.25 mm, the two real case sizes behind the keyword.
  3. Ask the seller for the measured diameter and the lug-to-lug span.
  4. Reject any answer that repeats the model name instead of giving numbers.

A 44.25 mm chronograph with long lugs overhangs a small wrist, and no replica fixes that. On a wrist under about 16 cm, the 38 mm case is the safer build.

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Step 2: Match the dial layout to the movement

  1. Open your reference photo of the genuine dial.
  2. Count the subdials. The 9300 dial carries two registers with the date near 6. The Speedmaster 38 dial shows three.
  3. Note where the date sits, at 6 or at 3, and whether the window is framed or cut straight into the dial.
  4. Compare hand shapes and lengths, then the finish on the subdial rings.

A copy with three registers cannot be copying a two-register 9300 dial, whatever the listing claims. Ask which dial the factory used as its template.

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Step 3: Interrogate the movement

  1. Ask for the movement family: a Chinese automatic chronograph, a Seagull ST19, or a decorated three-hand movement.
  2. Ask whether the chronograph works: start, stop, reset.
  3. Request a short video of the pushers in use and the seconds hand sweeping.
  4. Test the power reserve claim against reality. A 60-hour claim on a cheap automatic is marketing, not engineering.
  5. Decide in advance whether a dead pusher or a faux chronograph is acceptable to you.

Most replicas in this band hide a module behind the dial or dress up a three-hand movement. A quartz tick or a jumping small seconds hand is the giveaway.

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Step 4: Inspect the case, crystal, and finishing

  1. Study the caseback engraving for depth, crispness, and spelling.
  2. Check the crystal for coating on both faces and for a correct dome profile.
  3. Compare bezel markings and their alignment to the reference photo.
  4. Judge the lug profile from a side photo, not a front photo.
  5. Ask for daylight photos rather than studio lighting.

Step 5: Check the bracelet and clasp

  1. Ask for the bracelet width at the lugs and at the clasp, in millimeters.
  2. Ask how many removable links ship with the watch.
  3. Request a photo of the clasp markings and the folding mechanism.
  4. Confirm the bracelet tapers, since straight bracelets appear on many small women's builds.

Step 6: Confirm size on arrival

  1. Measure the case diameter and lug-to-lug span before you wear it.
  2. Weigh the watch. A hollow build feels light for its stated size.
  3. Run the chronograph through five start-stop-reset cycles.
  4. Set the time and check the rate over 24 hours.
  5. Compare the bracelet width and end-link fit to your reference photos.

Step 7: Understand the legal and customs side

Counterfeit watches carry trademarks owned by Omega and its parent group. In the United States, importing counterfeit goods can lead to seizure by customs, and selling or trafficking them carries civil and criminal exposure. A personal-use purchase is lower risk than resale, but the parcel can still be detained and destroyed. Treat every order as carrying that risk, and do not plan to resell.

Quick checklist

  • Case: measured diameter and lug-to-lug, not a model name.
  • Dial: register count and date position matched to the reference.
  • Movement: chronograph function shown on video.
  • Bracelet: width at both ends and link count.
  • Seller: answers in numbers, not adjectives.