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Seiko Presage Cocktail Time 145th Anniversary GMT Limited Edition 40.5mm Mens Watch Edo Purple
Ref. HCB006J1
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The Cocktail Time series began as a partnership between Seiko and the Star Bar in Ginza, translating specific drinks into dial colours and textures. This piece marks 145 years since Kintaro Hattori opened his Tokyo repair shop in 1881, and it introduces something the Cocktail Time line had not offered before: a GMT function. The inspiration is Edo Murasaki, a cocktail whose deep translucent purple references the particular violet associated with old Edo culture, and the dial's radial gloss pattern pulls that colour through shifting layers as the light moves across it. The 4R34 inside is a caller-style GMT — the local hour hand sets independently from the reference hand, so adjusting for a new time zone leaves the GMT tracking undisturbed. It is the same calibre Seiko introduced for the 5 Sports GMT, built for straightforward servicing and reliable daily use. At 40.5mm with a lug-to-lug of 47.5mm the case sits close enough to the wrist to read as a dress watch, which is the right register for a dial this considered. The gold GMT hand and applied logo are the only warm-toned details on an otherwise cool palette, and they are placed sparingly enough that neither reads as decoration for its own sake. One thing worth knowing before purchase: the indices and hands rely on polished surfaces to catch light rather than lume fills, so this is not a watch for reading in the dark. That is a deliberate choice for the series, and it suits the dial, but it is worth knowing.
- Reference
- HCB006J1
- Brand
- Seiko
- Collection
- Presage
- Case size
- 40.5mm
- Case thickness
- 12.8mm
- Lug width
- 20mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Purple
- Crystal
- Hardlex
- Movement
- Automatic
- Calibre
- 4R34
- Functions
- GMT, Date
- Water resistance
- 50m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Folding clasp
- Lume
- Luminous
- Retailer
- Goldsmiths
Additional specifications
- Lug-to-lug
- 47.5mm
- Power reserve
- 41 hours
Learn more about Seiko
Kintaro Hattori opened a watch and clock shop in Tokyo in 1881, aged twenty-one, and began manufacturing under the name Seikosha — roughly, house of exquisite workmanship — in 1892. The Seiko name appeared on watches from 1924.
The company's significance is that it broke the Swiss monopoly twice. First on precision: Seiko was appointed official timekeeper of the 1964 Tokyo Olympics and built the quartz chronometers and printing timers to do it, and in the 1960s its movements placed highly at the Neuchâtel and Geneva observatory trials against the best Swiss houses.
Then on technology. On Christmas Day 1969 Seiko released the Astron, the world's first quartz wristwatch, accurate to five seconds a month where mechanical watches managed that per day. The consequences for Switzerland were catastrophic — employment in the Swiss industry fell by roughly two-thirds over the following decade. Seiko deliberately did not enforce its quartz patents, allowing the technology to spread.
The same year it produced the 6139, among the first automatic chronographs, and it has since introduced Kinetic, Spring Drive — a hybrid regulating a mechanical mainspring electronically, giving a perfectly gliding seconds hand — and its own dive and field lines.
Seiko remains fully vertically integrated, making its own hairsprings, quartz crystals, and even the Zaratsu-polished cases, at price points from under a hundred pounds upward.
- 1881
- Kintaro Hattori opens his Tokyo shop.
- 1924
- The first watches carry the Seiko name.
- 1964
- Official timekeeper of the Tokyo Olympics.
- 1969
- The Astron becomes the first quartz wristwatch.
- 1999
- Spring Drive enters production.
Manufacturer’s guarantee
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 47.5mm lug-to-lug keeps the 40.5mm case wearable
- Luminous hands and markers for low light
- Second time zone for travelling
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 | HCB006J1 |  98A320 |  T1584072203101 |
|---|---|---|---|
| Price | £520 | £549 | £450 |
| Case size | 40.5mm | 40mm | 40mm |
| Water resistance | 50m | 50m | 50m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | 41 hours | — | — |
| This watch | Closely matched |
|
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?
It resists most everyday knocks. Hardlex is a hardened mineral glass — tougher than standard mineral, softer than sapphire.
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 41 hours fully wound — enough to survive a night off the wrist, but not a full weekend.
What size strap does it take?
20mm. Any strap of that width will fit, and on most modern watches quick-release bars make the swap a two-minute job with no tools.
Will it fit my wrist?
Lug-to-lug is 47.5mm, which suits wrists from roughly 16.5cm (6½ inches) upward.
Lug-to-lug decides fit more than case diameter does.
Is it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Goldsmiths is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
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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