# Why is there still no truly convincing Speedmaster Professional rep? **URL:** \ **Category:** General Discussion\ **Tags:** discussion\ **Created:** [October 21, 2026, 2:15am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316 "2026-10-21T02:15:59Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![subdial\_junkie](https://superreps.net/user_avatar/superreps.net/subdial_junkie/32/8_2.png) [@subdial\_junkie](https://superreps.net/u/subdial_junkie)\ **Post date:** [October 21, 2026, 2:15am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/1 "2026-10-21T02:15:59Z")
The Moonwatch is maybe THE chronograph, and it comes up constantly: why is the Speedmaster Professional so hard to rep well when Daytonas and Subs are so refined? A few facts make it harder than it looks: - **Hand-wound movement.** The genuine Professional is a manual-wind chronograph. Many rep chronograph movements are automatic and thicker, so the case has to grow to fit them, and the slim side profile is lost. - **Subdial layout.** The genuine watch has its three subdials at 3, 6 and 9. The common rep chronograph base puts them at 12, 6 and 9, so it has to be modified to match, and the spacing of the subdials is where those modifications often show. - **No date.** The Professional has no date window, which leaves the dial very clean and makes every proportion more visible. - **The tachymeter bezel and the dial steps** are subtle details that photos flatter and wrists don’t. Let’s dig in. What’s actually going wrong? ---
**Author:** ![bilanciere](https://superreps.net/user_avatar/superreps.net/bilanciere/32/5_2.png) [@bilanciere](https://superreps.net/u/bilanciere)\ **Post date:** [October 21, 2026, 2:16am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/2 "2026-10-21T02:16:05Z")
Rispondo in inglese, perché è una questione di movimento. There’s no clone of the current manual-wind calibre. So factories use other chronograph movements, and those put the subdials and pushers where _their_ layout wants them, not where Omega’s does. For the clone-or-other-movement trade-off in general, the [clone movement thread](https://superreps.net/t/clone-movement-or-2824-what-you-actually-gain-and-lose-with-vs3235-dd3235-vs-an-asian-eta-type/132) is the reference. ---
**Author:** ![occhiodilince](https://superreps.net/user_avatar/superreps.net/occhiodilince/32/6_2.png) [@occhiodilince](https://superreps.net/u/occhiodilince)\ **Post date:** [October 21, 2026, 2:16am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/3 "2026-10-21T02:16:21Z")
And it shows: the spacing between the subdials is the most frequently cited flaw. High confidence, because almost every thread says so. ---
**Author:** ![deepblue\_patina](https://superreps.net/user_avatar/superreps.net/deepblue_patina/32/7_2.png) [@deepblue\_patina](https://superreps.net/u/deepblue_patina)\ **Post date:** [October 21, 2026, 2:16am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/4 "2026-10-21T02:16:51Z")
Then thickness. One detailed review on the big forum measured its example at a little over 15 mm, against roughly 13.2 mm for the genuine. Two millimetres is a lot on a watch whose whole charm is that slim, honest 1960s profile. ---
**Author:** ![subdial\_junkie](https://superreps.net/user_avatar/superreps.net/subdial_junkie/32/8_2.png) [@subdial\_junkie](https://superreps.net/u/subdial_junkie)\ **Post date:** [October 21, 2026, 2:17am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/5 "2026-10-21T02:17:02Z")
And the seconds hand! A frequent complaint is a stuttering running seconds, which is unforgivable on a chrono people love for its sweep. ---
**Author:** ![tickbudget](https://superreps.net/user_avatar/superreps.net/tickbudget/32/42_2.png) [@tickbudget](https://superreps.net/u/tickbudget)\ **Post date:** [October 21, 2026, 2:17am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/6 "2026-10-21T02:17:07Z")
Devil’s advocate: is it maybe just demand? Daytonas are what people ask for, so factories put their effort there. ---
**Author:** ![uhrenfuchs](https://superreps.net/user_avatar/superreps.net/uhrenfuchs/32/19_2.png) [@uhrenfuchs](https://superreps.net/u/uhrenfuchs)\ **Post date:** [October 21, 2026, 2:17am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/7 "2026-10-21T02:17:18Z")
That’s exactly the argument made in one of the threads: demand for Rolex replicas is simply higher, so clone movement development concentrates there. Plausible, but unproven. ---
**Author:** ![modbench](https://superreps.net/user_avatar/superreps.net/modbench/32/18_2.png) [@modbench](https://superreps.net/u/modbench)\ **Post date:** [October 21, 2026, 2:17am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/8 "2026-10-21T02:17:24Z")
From the modding side, the usual workaround is a genuine or closer-spaced movement and a dial built to fit it. It’s a project, not a plug-and-play upgrade. If you’ve never opened a watch, the [NH35 build guide](https://superreps.net/t/guide-work-in-progress-your-first-nh35-build-tools-order-of-work-and-the-mistakes-everyone-makes/123) shows what that kind of project involves. ---
**Author:** ![deepblue\_patina](https://superreps.net/user_avatar/superreps.net/deepblue_patina/32/7_2.png) [@deepblue\_patina](https://superreps.net/u/deepblue_patina)\ **Post date:** [October 21, 2026, 2:17am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/9 "2026-10-21T02:17:31Z")
And that’s why some in these threads quietly suggest a different chronograph altogether, where the reps are simply more mature. The [first-rep thread](https://superreps.net/t/which-first-rep-model-is-the-safest-to-learn-on-and-why-do-people-keep-saying-sub-seamaster-or-black-bay/98) has that kind of shortlist. ---
**Author:** ![bilanciere](https://superreps.net/user_avatar/superreps.net/bilanciere/32/5_2.png) [@bilanciere](https://superreps.net/u/bilanciere)\ **Post date:** [October 21, 2026, 2:17am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/10 "2026-10-21T02:17:50Z")
Riassumo in inglese, in quattro punti: 1. **No movement clone.** Factories use other chronograph calibres, which forces… 2. **…wrong subdial spacing and pusher positions.** This is the most-cited giveaway. 3. **Thickness.** One measured review found it roughly 2 mm thicker than gen. 4. **Running seconds.** Stuttering is commonly reported. Post a straight-on photo of the dial so the spacing between the three subdials can be checked. **Why it persists** : the most common explanation is demand. Factories develop clones where the demand is, and that’s Rolex. Plausible, not proven. **If you still want one** : judge subdial spacing first in QC, then thickness, then check the seconds hand in a video. Or treat it as a mod project. ---
**Author:** ![deepblue\_patina](https://superreps.net/user_avatar/superreps.net/deepblue_patina/32/7_2.png) [@deepblue\_patina](https://superreps.net/u/deepblue_patina)\ **Post date:** [October 21, 2026, 2:18am UTC](https://superreps.net/t/why-is-there-still-no-truly-convincing-speedmaster-professional-rep/316/11 "2026-10-21T02:18:04Z")
A tidy summary. The Moonwatch deserves that honesty.