The Review Desk

Breguet Classique 5177 rep, sold as MKS V3: hands-on review

By swissreptime · hands-on, November 2026

We stock this watch. We handled this exact piece; every photo is ours.

What it is

• Reference copied: Breguet Classique 5177 in yellow gold with a silvered guilloché dial. Breguet catalogues this as 5177BA/12/9V6: 38 mm across, 8.8 mm thick, fluted caseband, Breguet hollow-apple hands, automatic calibre 777Q.
• Factory: MKS, version labelled “V3” by the supplier. We have not confirmed the attribution independently. What we can see does fit the MKS V3 that RWI members have written up: the same 28-jewel print and the same 8.8 mm thickness (see “What other owners report”).
• Movement (BWC-confirmed): a decorated Miyota 9015, a Japanese automatic, dressed to look like the Breguet 777Q. It is printed “CAL. 777Q”, “TWENTYEIGHT (28) JEWELS” and “SWISS” (IMG_2571, IMG_2572). None of the three is true of a Miyota 9015.
• Case and buckle: gold-tone, stamped “750”. It is polished steel, not gold. The 750 stamp is false: 750 means 18k gold, and this case is steel.

The movement: Miyota 9015 against the gen 777Q

The Miyota figures are Miyota’s own published specs. The 777Q figures are Breguet’s own, except the jewel count and the silicon escape wheel and lever, which come from secondary sources. Breguet’s model page lists neither.

What that means in plain terms:

• Same beat. Both run at 4 Hz, so the seconds hand sweeps the same way. It isn’t a tell.
• Shorter reserve. About 42 hours against 55. Wind it fully, take it off on Friday night, and it may have stopped by Sunday afternoon. On paper, the gen would still be running.
• The jewel print matches neither. The movement says 28. The 9015 has 24 and the 777Q is published at 26. One RWI reviewer of the MKS V3 noticed the same 28 print. More on that below.
• “SWISS” is false. The 9015 is Japanese.
• No silicon listed. The gen’s silicon balance spring and escapement are part of what Breguet sells. Miyota’s spec page lists no silicon parts.
• Thickness isn’t the 9015’s problem. At 3.90 mm it is only a tenth of a millimetre taller than Breguet’s 3.8 mm for the 777Q. That helps explain how this case gets down to 8.8 mm.

Hacking, quickset and hand-winding are what the 9015 is specified to do. We haven’t tested any of them on this piece, and we haven’t put it on a timegrapher.

Scorecard

Every score points to a photo. Where no photo shows a category, it reads “not assessed”.

Against the gen: what to look at

1. The jewel count. The movement is printed “TWENTYEIGHT (28) JEWELS” (IMG_2571). The Breguet 777Q is published at 26, and the Miyota 9015 underneath has 24. The print matches neither the calibre it names nor the one that’s actually inside, and you can read it through the caseback window.
2. Dial number vs caseback number. The dial reads “No 3463” (IMG_2562, IMG_2565). The caseback reads “BREGUET 4274 AK” (IMG_2566, IMG_2571). On a Breguet Classique, the watch’s unique serial appears on both the dial and the caseback. On this piece the two numbers disagree.
3. “CAL. 777Q” and “SWISS” on a Miyota 9015 (IMG_2571, IMG_2572). The print copies Breguet’s calibre name. The movement is a decorated Japanese 9015. The gen 777Q has a flat silicon balance spring and silicon escapement parts, and Miyota lists none for the 9015.
4. The 750 stamps (IMG_2566 caseback rim near the crown; IMG_2575 buckle, with three small hallmark-style symbols beside it). The gen is 18k yellow gold. This case is polished steel, so the stamp is false. Don’t let a stamp do the persuading.
5. The rotor (IMG_2566, IMG_2571). It is gold-tone with an engine-turned sunburst and a BREGUET cartouche. The gen rotor is 18k gold, guilloché on a rose engine. We can’t tell from photos what this one is made of or how it was cut.
6. One that goes in its favour: thickness. The caliper reads 8.8 mm (IMG_2580). Breguet publishes 8.8 mm for the 5177. For a dress watch this matters more than almost anything else: an extra millimetre is what stops a watch slipping under a cuff. Here we found no difference. Caveat: it is one reading from one photo, and we didn’t measure the 38 mm diameter.

The date window sits at 3 o’clock, just inside the III, with a bevelled frame (IMG_2563, IMG_2564, IMG_2570). That matches the gen layout, so it isn’t a tell. Miyota also makes a 9015 version with the date at 3.

Known issues / QC to check on any example

• Dust and fibres. IMG_2569 shows debris on the bezel and case edge and fibres at the crystal edge. Check under the crystal with a loupe before you accept one. Debris inside the case means it has to be opened.
• Strap stitching. IMG_2574 shows loose fibres along the stitch line. Fibres can be trimmed. Stitching that is actually coming undone can’t be fixed that way.
• Serials. On ours the dial and caseback numbers didn’t match (see above). Check them against each other on any example.
• Caseback reference. Ours reads “REF. 5177” (IMG_2566). One RWI thread reports a batch engraved “5157” instead. Check yours.
• Lug screws. Ours has them (IMG_2566). The same thread reports a batch that arrived without them.
• Caseback seal. One RWI owner says his caseback didn’t close fully because of a deformed plastic O-ring. We didn’t open ours.
• Date. Check that the date changes near midnight and sits centred in its window. The 9015 is specified with a quickset date. We haven’t tested it on this piece.
• Rotor sound. The 9015 is often described as having an audible rotor, more so through a display back. We didn’t assess ours.
• Water. The gen is rated to 3 bar. We have not tested this case. Treat it as a dress watch that stays dry.

What other owners report

This section is what other people have written. It is not what our photos show. All of it comes from RWI, the longest-running rep forum. RWI blocked direct page reads during our research, so we read these threads through search-result extracts, not in full. Treat every point as one owner’s report unless it says otherwise.

• The MKS V3 is reported at 8.8 mm, and that’s its selling point. A 2023 RWI review of the MKS V3 (member “stuxnet”) puts it at 8.8 mm. It names the thinness as the reason to choose it over the FKF V3, which the reviewer gives as 9.3 mm. That matches our caliper. Conflicting: an FKF owner on RWI says his measures 8.8 mm. Another member says the FKF is about 0.3 mm thicker because of its more detailed decoration plate.
• The 28-jewel print shows up there too. The same review reports a 28-jewel print on the V3 movement against the gen’s 26, which is read in the thread as a sign MKS worked from photos rather than a gen. Single source; read via search extract.
• An older MK thread reports a Miyota 9015 base. In a thread on the MK 5177, an RWI reply calls its A777Q a Miyota 9015 with a plate added to resemble the 777Q. That fits what we confirmed on our piece.
• What changed from V2. The V3 review says the movement was re-engraved compared with the V2. One commenter says V3 is the version with the corrected dimensions. Another says the V2 had a white rotor (single source, second-hand). For the enamel-dial version, the V3 dial is described as brighter and harder than the V2. That doesn’t apply to our guilloché dial. Members disagreed about which version the reviewer actually had. Diameter conflict: the review says the case matches the gen’s 38 mm, while a commenter gives the V3 as 38.5 mm. We didn’t measure ours.
• Movement decoration disappoints. The V3 reviewer says he was disappointed by MKS’s attention to detail in the movement decoration. He rates FKF’s finish and decoration plate as better. Single source.
• Rotor colour. The reviewer warns that the MKS steel model has a yellow-gold-coloured rotor. A commenter says a silver-case MKS he received came with a silver rotor. Conflicting. Our gold-tone case has a gold-tone rotor.
• Dial printing. A complaint mentioned in the V3 review is that the Breguet logo and numerals look bolder than the gen. In the older “5177 MK” thread, replies make the same point about the enamel dial’s numerals. That is two threads, both about printing weight, not about the guilloché.
• Guilloché date wheel. In a long-running 5177 photo-review thread, at least one member says the MK guilloché dials have a date wheel without the gen’s silver backing. Another member says the FK date wheel is off too. On guilloché quality itself, the V3 review thread describes both MKS and FKF as fine. Mixed.
• “Super rep” pushback. In the “5177 MK” thread, replies dispute the poster’s “super rep” claim. One says the older MK is noticeably thick on the wrist next to a gen. That thread appears to be older than the V3 review, so it likely describes an earlier, thicker case.
• Batch errors. A later thread reports MKS casebacks engraved “5157” instead of “5177”. A commenter says the newest batch had the same error and was missing the small lug screws. Ours has neither problem (IMG_2566).
• Caseback O-ring. One V3 owner says the caseback wouldn’t close fully because MKS used a deformed plastic O-ring instead of a rubber one, and a watch shop fixed it. Single source.

We found no Reddit discussion of this watch in search results.

Who should skip it

• Anyone who wants a gold watch. This one is polished steel, whatever the 750 stamp says.
• Anyone who wants the gen’s movement spec. This is a Miyota 9015: about 42 hours of reserve against 55, no silicon parts listed, and prints that claim otherwise. There’s no timing data yet.
• Anyone who will turn it over in front of people who know Breguet. The caseback is where this watch is weakest: a jewel count that matches neither movement, “SWISS” on a Japanese calibre, and serials that disagree.
• Anyone after a daily beater. It is a thin dress watch on a leather strap.

FAQ

Is it solid gold?

No. It is polished steel. The case and buckle carry 750 stamps, but they are false: 750 means 18k gold, and this watch is not gold.

What movement is inside?

A decorated Miyota 9015, a Japanese automatic, printed “CAL. 777Q” to look like Breguet’s. We confirmed this on our piece. It runs at the same 4 Hz as the gen, with about 42 hours of reserve against the gen’s 55.

Does it hack, and does the date quickset?

The Miyota 9015 is specified with both: stop seconds and quick date setting. We haven’t tested either on this piece yet.

Is it as thin as the real 5177?

On our one caliper reading, yes. 8.8 mm against Breguet’s published 8.8 mm (IMG_2580). An RWI review of the MKS V3 reports the same figure.

Why does it say 28 jewels?

We don’t know. It’s wrong for both movements: the 9015 has 24 and the 777Q is published at 26. One RWI reviewer found the same print on his V3.

Can you tell it from the gen with the caseback down?

From the dial side the macros hold up well. Turn it over and the 28-jewel print, the SWISS print and the mismatched serials are visible to anyone who knows to look.

Hands-on as of November 2026. Gen specifications from Breguet’s own 5177BA/12/9V6 listing; movement specs from Miyota. Owner reports are attributed and kept separate from our own photos. Fact-checked before publishing.

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