Reference guides · H. Moser & Cie.
H. Moser & Cie. Streamliner Centre Seconds Matrix Green: 6200-1200 vs 6201-1200
The same Matrix Green idea in two references. How to tell the original Streamliner Centre Seconds from the HMC 201 version, and which details to ask about.

The Matrix Green Streamliner Centre Seconds now exists in two closely related generations. The dial colour is the same idea; the reference number, movement and a few quiet details are not.
H. Moser & Cie. introduced the Streamliner Centre Seconds in 2020 and later brought the Matrix Green dial back with an updated calibre. If you are comparing listings, the first job is to confirm which of the two you are actually looking at. This guide separates what Moser documents from what retailers and the press report.
Two references, one colour
Moser says it unveiled the Streamliner Centre Seconds, the second model in the Streamliner collection, in August 2020, powered by its in-house HMC 200 self-winding calibre (H. Moser & Cie. Chronicles). Hodinkee's launch report identified that first Matrix Green watch as reference 6200-1200 (Hodinkee's August 2020 introduction).
Moser's current product page lists the Streamliner Centre Seconds Matrix Green as reference 6201-1200. It describes the watch as returning "in its original Matrix Green fumé dial, with a number of evolutions," powered by the HMC 201 automatic calibre (Moser's 6201-1200 page). The same page lists a sister reference, 6201-1201, with a Purple Haze dial.
What Moser documents
For the current 6201-1200, Moser lists a 40.0 mm steel case, 12 ATM water resistance, a fully integrated steel bracelet, the HMC 201 automatic movement and a 72-hour power reserve. Moser also names three evolutions: a logo applied with transparent lacquer, a more open movement architecture and a fully skeletonised gold rotor with grey tones (Moser's technical specifications).
For the original, the Fondation Haute Horlogerie's novelty sheet lists a 40 mm cushion-shaped steel case, 11.8 mm thick, with a sapphire case back and 120 m water resistance. Its HMC 200 entry gives a 72-hour power reserve, 27 jewels, a 32 mm diameter and 5.5 mm thickness. The sheet also notes Globolight inserts in the hour and minute hands, described as a ceramic-based material containing Super-LumiNova (FHH Streamliner Centre Seconds sheet).
One small inconsistency is worth knowing. Hodinkee's 2020 report listed 100 m of water resistance and a 21,600 vibrations-per-hour frequency for the HMC 200, while the FHH sheet lists 120 m (Hodinkee specifications). We would treat the case back and the watch's own papers as the reference point, not any single article.
The details that separate them
The fastest visual check is the dial signature. Moser describes the 6201-1200 logo as applied with transparent lacquer. Ethos, a retailer, describes it as visible only at certain angles, with the "M" on the crown as the only visible signature (Ethos Watch Guide). Photographs taken straight on can hide that kind of detail, so ask for an angled shot.
The second check is through the sapphire case back. Moser's description of the HMC 201 emphasises the more open architecture and fully skeletonised rotor. Ethos reports partially open-worked bridges with Moser's double stripes, and says the skeletonisation raised the watch's height from 11.8 mm to 12.1 mm. That thickness figure comes from a retailer article, not Moser's current specification table, so confirm it with the seller if it matters to you.
Ethos also reports that the bracelet's ergonomic fit was retained. Moser's current page describes the bracelet as composed of individual, finely finished links that follow the form of the wrist. In our view, if you have worn one generation, the fit is unlikely to be the main difference between them. That is still something to confirm on your own wrist where possible.
Paperwork and condition checks
An integrated bracelet changes what "complete" means. Spare links are part of the watch's future fit, and the case and bracelet were designed as one form. Moser says the Streamliner collection was designed "from integrated steel bracelets up," with individual links and cases finished to express the character of steel (Moser's Streamliner history).
- Reference: Confirm 6200-1200 or 6201-1200 on the paperwork, and make sure it matches the dial signature and the movement visible through the case back.
- Bracelet: Ask how many links are fitted, how many spare links are included and the approximate wrist size it currently fits.
- Finishing: The curved case flows into the bracelet. Ask for photographs in raking light along the case flanks and first links to judge wear or refinishing.
- Dial and hands: A fumé dial shifts in tone with light, so ask for photographs in daylight and indoor light. Check the Globolight hand inserts for even appearance.
- Service and warranty: Ask separately for service records and the warranty documents; do not infer either from the reference number.
Choosing between them
The original 6200-1200 is the watch Moser launched in 2020. The 6201-1200 is the version Moser currently presents, with the lacquered logo and HMC 201. Neither is objectively the right answer. Some collectors will prefer the first execution of a design; others will prefer the updated movement view and quieter dial.
If you compare prices, compare the same reference, condition and completeness. An asking price is not a completed sale, and neither reference should be treated as a promise about future value. Before paying for a pre-owned example, clarify the purchase, inspection, delivery and return terms in writing.
Our perspective: the Streamliner rewards a careful look at details that photographs often flatten. Start with the reference, then ask for the angled dial shot and the case back.
Published by LumeVault. Specifications are checked against H. Moser & Cie. pages and the Fondation Haute Horlogerie sheet linked in this article; reported changes from retailer and press coverage are attributed to those sources. Buying guidance reflects our editorial perspective and is not a guarantee of value or availability. LumeVault is an independent dealer and is not affiliated with H. Moser & Cie.
Manufacturer references
https://www.h-moser.com/en/streamliner/streamliner-centre-seconds-matrix-green-6201-1200https://h-moser.com/en/the-chronicles/watches/a-new-era-in-h-moser-cie-history-meet-the-streamliner-the-dawn-of-a-new-erahttps://www.hautehorlogerie.org/en/watches-and-culture/watchmaking-scene/watches-and-novelties/streamliner-centre-secondshttps://www.hodinkee.com/articles/h-moser-and-cie-streamliner-centre-seconds-introducinghttps://www.ethoswatches.com/the-watch-guide/h-moser-streamliner-centre-seconds/Make the search personal.
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