Seiko Presage Diamond-Set Cocktail Time Collection – Hot Buttered Rum, Eggnog & Jamaican Coffee
Hi Watchfam,
Seiko’s been mixing up something new — and it’s got just the right amount of sparkle. Say hello to the Seiko Presage Diamond-Set Cocktail Time collection: three compact 30 mm automatics inspired by some seriously tasty-sounding daytime cocktails — Hot Buttered Rum, Eggnog, and Jamaican Coffee.
We’ve seen a lot of brands leaning into smaller case sizes lately, but this is Seiko’s way of showing they can do petite without losing personality. These aren’t just shrunken-down versions of old models — they’ve been given their own mood, style, and a touch of diamond glamour. And, just like the rest of the Cocktail Time family, the inspiration comes from Mr Hisashi Kishi, head bartender at Tokyo’s world-famous Star Bar, whose creations have been turning into Seiko dials for years.
A Quick Sip of History – The Cocktail Time Story
The Presage Cocktail Time line first popped up in Japan back in 2010 before making its way worldwide in 2016, and it’s been a fan favourite ever since. The recipe is simple: take a well-made mechanical watch, add a dial that captures the look and feel of a cocktail, and serve it up at an accessible price.
From deep blues like the Seiko Blue Moon to rich reds and golden tones, every model tells its own story. This latest trio is one of the smallest mechanical Cocktail Time releases yet — perfect for those who like their watches a little more low-key, but still full of flavour.
Meet the Trio
Hot Buttered Rum – A warm golden dial that feels like the watch equivalent of wrapping your hands around a mug on a chilly evening. Comes on a matching bracelet.
Eggnog – Crisp, creamy silver with a clean look that works pretty much anywhere, from coffee with friends to a lunch date.
Jamaican Coffee – A deep, rich brown dial paired with a leather strap — think cosy autumn afternoons and unhurried weekends.
If you love seeing how Seiko can pack personality into a dial, you might also enjoy my Seiko Prospex Ladies Marine Sports review — a completely different style, but just as thoughtfully done.
Diamonds in the Daylight
Each of these watches has four diamond-set indices, adding just enough sparkle to catch the light without screaming for attention. The 30 mm size keeps things elegant and comfortable — perfect for the “Daytime Cocktail Party” theme Seiko’s going for here.
For something completely different but equally full of Seiko character, take a look at my Seiko Tuna Street Series review — proof that the brand can go from elegant to extreme without missing a beat.
Under the Hood – Calibre 2R05
All three models are powered by the automatic calibre 2R05 — a slim movement designed for smaller watches, with a 40-hour power reserve and accuracy of +45/-35 seconds per day. You’ll also find it in other smaller Presage and Lukia models, where it helps keep proportions just right.
If you’re curious about how this fits into Seiko’s wider movement range, from mechanical to solar, my guide on Are Seiko Solar Watches Good? is a great place to start.
Price & Availability
The Seiko Presage Diamond-Set Cocktail Time collection will be available for pre-order in the UK from September 1st exclusively at SeikoBoutique.co.uk, priced between £500 and £550 depending on the model.
Why This Release is Worth a Toast
For Cocktail Time fans, this is something fresh — a smaller, diamond-accented take on a series that’s usually known for larger, more statement-making designs.
For newcomers, it’s a great way to get into the Presage line with a watch that’s both wearable and a bit special.
And for anyone who just enjoys a good watch story, it’s another reminder that Seiko can turn something as simple as a drink into a little piece of wrist art.
Specifications
Model names: Hot Buttered Rum (SRE017J1), Eggnog (SRE018J1), Jamaican Coffee (SRE020J1)
Case diameter: 30 mm
Case material: Stainless steel
Crystal: Hardlex
Dial: Diamond-set indices (4 diamonds)
Movement: Seiko calibre 2R05 automatic
Power reserve: 40 hours
Accuracy: +45/-35 seconds per day
Water resistance: 50 m
Strap/Bracelet: Stainless steel bracelet (Hot Buttered Rum & Eggnog), Leather strap (Jamaican Coffee)
Price: £500–£550
Availability: Pre-order from September 1st, 2025
FAQ
What is the Seiko Presage Cocktail Time series?
It’s a line of mechanical watches inspired by cocktail culture, often created in collaboration with Star Bar Tokyo’s Hisashi Kishi.
Are the Diamond-Set Cocktail Time watches limited edition?
Seiko hasn’t called them limited editions, but Cocktail Time special variants are often made in smaller quantities.
Is the calibre 2R05 a good movement?
Yes — it’s a compact automatic designed for smaller watches, offering a good balance of accuracy, practicality, and charm.
Are the diamonds in Seiko watches real?
They are — Seiko uses genuine diamonds for the indices in the Diamond-Set Cocktail Time range.
Is the Seiko Presage Diamond-Set Cocktail Time for men or women?
At 30 mm, it’s aimed at those who prefer a smaller watch, but size preferences are personal — wear what you love.