Reduced Speedmaster 38mm Omega Replica: What the Case Actually Is

The name "reduced Speedmaster" comes from the Speedmaster Reduced, ref. 3510.50, a 39 mm chronograph Omega sold through the 1990s and 2000s. Omega retired that line. The current small Speedmaster is the Speedmaster 38 mm, ref. 324.30.38.50.01.001 in steel. A replica of it is a 38 mm chronograph case with 18 mm lugs, three subdials, a date window, and a case back that is either solid and engraved or sapphire.

reduced speedmaster 38mm omega copy

Two numbers decide quality: case thickness and the movement inside.

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Genuine specs to measure against

  • Case diameter: 38 mm.
  • Lug width: 18 mm.
  • Thickness: about 12.7 mm.
  • Water resistance: 100 m.
  • Crystal: sapphire front.
  • Movement: Omega caliber 3330, automatic chronograph, 52 hours power reserve, Co-Axial escapement, silicon balance spring.

Replica tells

Most 38 mm replicas measure 13.5 mm to 14.5 mm thick. The extra 1 mm to 2 mm sits under the case back and lifts the watch off the wrist. Measure with calipers. A listing that states 14 mm is not a copy of a 12.7 mm case.

omega watch speedmaster reduced 38mm replica

Movements fall into three groups. A Seiko VK63 meca-quartz is thin, keeps good time, and moves the chronograph hand at five steps per second. An Asian 7750 or 7753 automatic is thicker and beats at 21,600 vph. A plain quartz is the cheapest and has no sweep. Ask which one is fitted. A seller who will not answer is moving quartz stock.

reduced speedmaster 38mm omega copy

Then check these points:

  1. Subdial hand zero. Start and reset the chronograph three times. Hands should return to 12.
  2. Date font and window shape against the reference dial.
  3. Lug span. A 19 mm or 20 mm spring bar span means the case is a reworked Reduced case.
  4. Bracelet end link fit. Gaps at the lugs show on a wrist.
  5. Pusher and crown threads. Pushers should reset clean.

Water resistance and service

The genuine rating is 100 m. Replica gaskets are not pressure tested. Treat any replica as splash resistant. Do not swim or shower with it. A watchmaker can pressure test the case if water contact matters to you.

Service is the second cost. VK63 modules are replaced, not repaired, and a new module costs less than a service. Automatic 7750 copies need cleaning every few years, and parts come from the same supply channel as the movement.