Seiko Presage Cocktail Time 'Midnight Blue Moon' 39.52mm

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Seiko Presage Cocktail Time 'Midnight Blue Moon' 39.52mm

Name: Seiko Presage Cocktail Time 'Midnight Blue Moon' 39.52mm
Brand: Seiko
SKU: SRPK15J1
Availability: InStock

Ref. SRPK15J1

Among our 178 Seiko watchesThis watch£380

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Stepping up in the same colour and case shape

The Cocktail Time line draws its designs from actual drinks served at the Star Bar in Ginza, Tokyo, and the Midnight Blue Moon is among the most direct translations of that idea: the deep, shifting blue of the sunray dial is the drink itself, caught at the moment the bar goes dark around it. A gold seconds hand sweeps across faceted baton indices, and the combination reads as genuinely warm rather than merely decorative — the brown calfskin strap, with its alligator embossing and polished deployant clasp, pulls the palette together without overworking it. At 40.5mm across but only 47.5mm lug to lug, it sits closer to a 38mm watch than the diameter suggests, and at under 12mm thick it passes under a cuff without resistance. The 4R35 movement hacks and hand-winds, which matters daily; the exhibition caseback lets you watch it run, which matters less often but rewards the curious. Accuracy runs to the tolerance you would expect from a general-service automatic rather than a regulated one, and that is an honest trade for what this watch is.

Reference: SRPK15J1
Brand: Seiko
Collection: Presage
Case size: 40.5mm
Case thickness: 12mm
Lug width: 20mm
Case material: Stainless steel
Case shape: Round
Dial: Blue
Crystal: Hardlex
Movement: Automatic
Calibre: 4R35
Functions: Date
Water resistance: 50m
Bracelet / strap: Leather strap
Strap colour: Brown
Clasp: Deployant clasp
Lume: LumiBrite
Retailer: F.Hinds

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.

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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
Sits in the lower half of Seiko's range as we list it

Worth knowing

50m suits rain and handwashing, not swimming

Best forFormal wear

Less suited toSwimming

Compare alternatives

Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.

Presage Cocktail Time 'Midnight Blue Moon' 39.52mm compared with 2 alternatives from other brands
Specification	This watchPresage Cocktail Time 'Midnight Blue Moon' 39.52mmSRPK15J1	OrientRA-AR0009L30B Contemporary Automatic Bracelet Watch - W2969RA-AR0009L30B	CitizenTsuyosa Automatic Small Seconds 40mm Unisex WatchNK5010-51L
Price	£380	£365	£399
Case size	40.5mm	40.8mm	40mm
Water resistance	50m	50m	50m
Movement	Automatic	Automatic	Automatic
Strap	Leather strap	Stainless steel bracelet	Stainless steel bracelet
Power reserve	41 hours	40 hours	60 hours
	This watch	Closely matched	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

Both F.Hinds and Goldsmiths list it at £380, so choose on delivery and warranty rather than price.

Who are F.Hinds?

F.Hinds has been run by the same family since 1856 and is now in its fifth generation, with more than 115 shops across England and Wales. They are a member of the Responsible Jewellery Council and an Authorised Diamond Dealer.