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Omega Constellation Co-Axial Master Chronometer Small Seconds 34mm Automatic Ladies Watch
Ref. O13120342063001
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Stepping up in Omega's range
The Constellation's Manhattan proportions date to 1982, and this generation carries that geometry forward with updated mechanics and a small seconds subdial sitting at six o'clock in place of the swept hand. What changed underneath matters considerably: the 8802 is built to METAS Master Chronometer certification, which demands resistance to magnetic fields of 15,000 gauss — a standard that puts it well beyond ordinary chronometer testing and makes it genuinely indifferent to the magnetic fields that accumulate around phones, bag clasps and induction hobs. At 34mm the case sits neatly on a smaller wrist without reading as a dress watch that has been shrunk. The light chestnut dial carries eleven diamond hour markers set in 18K Sedna gold holders, Omega's proprietary rose-gold alloy, and the same metal alternates with steel across the mono-rang bracelet — single-row, integrated, with a visual rhythm that runs continuously from case to clasp. The butterfly clasp adjusts without tools, which on a mesh bracelet of this weight is the detail that determines daily comfort rather than the fit set at the counter. The caseback is sapphire, and the 8802 visible through it is decorated to match the finish of the case — the co-axial escapement and silicon balance spring are not hidden components but part of what the watch is presenting.
- Reference
- O13120342063001
- Brand
- Omega
- Collection
- Constellation
- Case size
- 34mm
- Case thickness
- 11.70mm
- Case material
- Two-tone
- Case shape
- Round
- Dial
- Brown
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- OMEGA 8802
- Functions
- Date, Small seconds
- Water resistance
- 50m
- Bracelet / strap
- Mesh bracelet
- Strap colour
- Two-tone
- Clasp
- Butterfly clasp
- Lume
- Luminous
- Condition
- Ex-display
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 37mm
- Power reserve
- 55 hours
Learn more about Omega
Louis Brandt began assembling pocket watches in La Chaux-de-Fonds in 1848. His sons moved production to Biel in 1880 and, in 1894, released a calibre whose parts were fully interchangeable and which could be serviced by any watchmaker with standard tools. They named it Omega. The movement was successful enough that the company took its name.
Omega's history is bound up with measurement in public. It became official timekeeper of the Olympic Games in 1932 and has held the role for most Games since, which drove genuine engineering: photo-finish cameras, touchpads in swimming pools, and the timing systems that made hundredths of a second meaningful.
NASA qualified the Speedmaster for manned spaceflight in 1965 after testing chronographs from several manufacturers to destruction, and it was on Buzz Aldrin's wrist on the lunar surface in 1969. The watch has never been substantially redesigned.
The Seamaster line dates to 1948 and covers everything from dress watches to saturation diving instruments. Omega's technical position strengthened considerably after 1999 with the adoption of George Daniels' co-axial escapement, the first genuinely new escapement to reach series production in two centuries, and more recently through Master Chronometer certification testing resistance to magnetic fields at 15,000 gauss.
The company has been part of the Swatch Group since its formation.
- 1848
- Louis Brandt starts assembling watches in La Chaux-de-Fonds.
- 1894
- The Omega calibre gives the company its name.
- 1932
- Becomes official timekeeper of the Olympic Games.
- 1948
- The Seamaster line is introduced.
- 1965
- NASA qualifies the Speedmaster for manned spaceflight.
- 1999
- The co-axial escapement enters series production.
Also in 6 collections
This watch appears in Watches Under 37mm (1,602), Women's Watches (1,550), Automatic Watches (1,368), Two-Tone Watches (438), Mesh Bracelet Watches (236) and Pre-Owned, Ex-Display & Vintage Watches (154).
Manufacturer’s guarantee
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 34mm wears small and slips under any cuff
- 37mm lug-to-lug keeps the 34mm case wearable
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
- Sits in the lower half of Omega's range as we list it
Worth knowing
- 50m suits rain and handwashing, not swimming
Compare alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | O13120342063001 | 278608-4001 | 1-35-14-02-02-04 |
|---|---|---|---|
| Price | £9,850 | £9,940 | £9,800 |
| Case size | 34mm | 33mm | 32.5mm |
| Water resistance | 50m | 30m | 30m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Mesh bracelet | Leather strap | Leather strap |
| Power reserve | 55 hours | 42 hours | 60 hours |
| This watch |
|
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
Showering yes, swimming no. 50m covers splashes and brief immersion, but a swimming stroke generates well above the pressure that figure describes.
Will the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Does it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
How long does it run for when it's not worn?
About 55 hours fully wound — enough to survive a night off the wrist, but not a full weekend.
Will it fit my wrist?
Lug-to-lug is 37mm, which suits wrists from roughly 15cm (6 inches) upward.
Lug-to-lug decides fit more than case diameter does.
Is it a men's or women's watch?
Listed as women's, though at 34mm it sits in the range that suits anyone.
Cheapest place to buy
Goldsmiths at £9,850, ex-display. No UK retailer we track lists this reference new.
Is this available new?
Not from the UK retailers we track. This reference is listed as ex-display only, at £9,850 from Goldsmiths. Ex-display watches are unworn shop stock rather than second-hand — sold below the recommended retail price, and with the manufacturer’s guarantee intact.
Who are Goldsmiths?
Goldsmiths has been selling watches in Britain since 1778 and is part of the Watches of Switzerland Group, which is listed on the London Stock Exchange. They are an authorised dealer, so a watch comes with the manufacturer’s own warranty.
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