If you are shopping for a replica Omega Speedmaster, two movement labels come up again and again: Cal 863 and Cal 38. Cal 863 copies the rhodium-finished, hand-wound chronograph that Omega fitted to its sapphire-back Moonwatches, while Cal 38 is the simplified automatic-style option that turns up in the same 42 mm cases. Deciding between them first — before you compare factories, dials or bracelets — is the choice that most changes how the watch feels on the wrist.
omega speedmaster cal 863 fake watch
What should you compare first?
Start with the winding system and the dial architecture. Cal 863 builds use a hand-wound chronograph with a three-register dial, subdials at 3, 6 and 9 o'clock, and a pusher feel that snaps back cleanly on reset. Cal 38 builds are automatic, sit slightly thicker under the crystal and generally have a softer, slower pusher action. If you want the Moonwatch silhouette, the 863 is the closer match.
speedmaster cal 863 fake version
Key Features
- Cal 863: hand-wound chronograph clone with subdials at 3, 6 and 9 o'clock
- Rhodium-toned plates and bridges visible through sapphire case backs
- Cal 38: automatic winding, taller profile, simpler to live with daily
- Crisper pusher return and chronograph reset on 863 builds
- Dial printing, subdial spacing and hand lengths matched to the fitted movement
- Both versions take the same straps and bracelets when lug width matches
- 863 spare parts are more widely supported by replica watchsmiths
- Case-back engraving and bridge or rotor decoration differ between the two
Materials and specifications
Both builds use a stainless steel case, usually around 42 mm across, with a domed crystal in sapphire or hesalite depending on the reference being copied. The 863 version stays closer to the original 14 mm profile and keeps the classic low-beat hand-wound rhythm, with a power reserve that comfortably covers a weekend off the wrist. Cal 38 builds run at a higher beat rate, add a rotor, and often measure a millimetre or so thicker, which you notice when the watch slips under a cuff. Finishing on the 863 is the headline: striped bridges, polished screws and engraved markings that read correctly through a display back.
Which one should you choose?
Choose Cal 863 if you want the closest match to a genuine Moonwatch look, feel and case-back view. Choose Cal 38 if you prefer automatic winding and do not mind a slightly taller case on the wrist.
Speedmaster Cal 863 Fake Version: How to Spot One
Do both fit the same bracelets?
Yes, as long as the lug width matches — most of these builds use 20 mm lugs, so steel bracelets, leather straps and NATO bands are interchangeable.
Shipping and returns
Orders are packed discreetly and shipped with tracking, typically within a few business days of payment clearing. Every watch is checked for dial alignment, chronograph function and winding before dispatch, and returns are accepted on unworn pieces in original packaging within the stated window. If a movement arrives running fast, slow or not at all, contact support and a replacement or repair will be arranged.