SEIKO LUKIA SSWA015J QUARTZ SILVER STAINLESS STEEL WOMEN WATCH
SSWA015J
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- Warranty 3 Years
Most watches with diamonds put them on the dial and stop there. The Seiko Lukia SSWA015J also sets lab-grown diamonds into the case, laid out in an asymmetrical, flowing arrangement rather than a symmetrical row — Seiko's intention being that checking the time should feel lively rather than routine. Seiko presents the watch as a jewellery-like miniature, and that is the fairest description of it.
The dial is white mother-of-pearl, a natural shell material, carrying dynamic Arabic numerals and a rounded form. At one and seven o'clock sit clover-shaped settings holding lab-grown diamonds, and the crown is shaped as a clover to echo them. It belongs to Lukia's Happy Collection, built around a heart-lifting sparkle. The stainless steel case measures 21.0mm across and 7.0mm thick, the whole watch weighs 42 grams, and Calibre 4N30 keeps it to ±15 seconds a month behind curved sapphire.
At a Glance
- BrandSeiko
- CollectionLukia — Happy Collection
- MovementCalibre 4N30 Quartz
- DialWhite Mother-of-Pearl
- DiamondsLab-Grown, Case & Dial
- NumeralsArabic
- Case Width21.0mm
- Case Thickness7.0mm
- Weight42g
- GlassCurved Sapphire, AR Coated
- Battery LifeApprox. 3 Years
- Water Resistance10 BAR
Why You'll Love It
- Diamonds on the case, not only the dial. It is the detail that separates this reference from the rest of the collection, and it is what you notice from across a table.
- They are laid out asymmetrically, in a flowing arrangement rather than an even row — a deliberate choice, meant to catch the eye differently depending on the angle.
- A white mother-of-pearl dial. It is natural shell, so the iridescence shifts with the light and no two dials are quite the same.
- Clover-shaped settings hold lab-grown diamonds at one and seven o'clock — a far more considered placement than spacing stones evenly round the dial.
- The crown is shaped as a clover too, so the motif carries from the dial round to the part of the watch you actually touch.
- Lab-grown diamonds throughout: the same crystal structure, hardness and sparkle as mined stones, arrived at differently.
- Dynamic Arabic numerals on a rounded dial form, which keeps a jewellery piece legible as a watch.
- 7.0mm thick and 42 grams complete. Very little on a metal bracelet manages either, and together they mean it clears a cuff and then disappears.
- 21.0mm wide and 29.2mm long — small on purpose, and proportioned for a wrist larger watches overwhelm.
- Curved sapphire with the anti-reflective coating on the inner surface, where knocks and scratches cannot reach it.
- About three years between batteries, ±15 seconds a month, and magnetic resistance built in.
Perfect For
- Evening Occasions
- Office & Formal Wear
- Everyday Elegance
- Petite Wrists
- Diamond & Jewellery Watches
- Japanese Design
- Milestone Gift
- Gift for Her
Key Features
- Lab-grown diamond-set case — one of the two features Seiko names on this reference, in an asymmetrical, flowing layout.
- White mother-of-pearl dial — the other.
- Lab-grown diamonds in clover-shaped settings at one and seven o'clock on the dial.
- Clover-shaped crown, designed to echo the dial setting.
- Dynamic Arabic numerals on a rounded dial form.
- Calibre 4N30 quartz movement — battery powered, accurate to an average monthly rate of ±15 seconds, with a battery life of approximately 3 years.
- Stainless steel case — 21.0mm wide, 7.0mm thick and 29.2mm long, at a total weight of 42 grams.
- Curved sapphire crystal with anti-reflective coating on the inner surface.
- Metal bracelet with a one-push triple-fold clasp, fitting a wrist of up to 176mm.
- Magnetic resistance and daily-use reinforced water resistance to 10 bar.
- Happy Collection — the Lukia line Seiko builds around a heart-lifting sparkle.
Technical Specifications
The Seiko Lukia SSWA015J is a quartz ladies' watch from Lukia's Happy Collection, powered by Calibre 4N30 with an average monthly rate of ±15 seconds and a battery life of approximately 3 years. Seiko names two features on it: a lab-grown diamond-set case, laid out asymmetrically, and a white mother-of-pearl dial. The dial carries dynamic Arabic numerals in a rounded form, with lab-grown diamonds held in clover-shaped settings at one and seven o'clock, and the crown is shaped as a clover to echo them. The stainless steel case measures 21.0mm wide, 7.0mm thick and 29.2mm long, and the complete watch weighs 42 grams, with curved sapphire and anti-reflective coating on the inner surface. It is fitted to a metal bracelet with a one-push triple-fold clasp sized to a maximum wrist circumference of 176.0mm, and offers magnetic resistance and daily-use reinforced water resistance to 10 bar.
| Model Number | SSWA015J |
| Case Material | Stainless Steel |
| Case Setting | Lab-Grown Diamonds, Asymmetrical Layout |
| Case Width | 21.0mm |
| Case Thickness | 7.0mm |
| Case Length | 29.2mm |
| Weight | 42.0g |
| Crown | Clover Shaped |
| Glass | Curved Sapphire, Anti-Reflective Inner Coating |
| Water Resistance | 10 BAR |
| Magnetic Resistance | Yes |
| Material | White Mother-of-Pearl |
| Form | Rounded |
| Numerals | Dynamic Arabic |
| Diamonds | Lab-Grown, Clover Settings at 1 and 7 O'Clock |
| Type | Metal Bracelet |
| Clasp | One-Push Triple-Fold |
| Maximum Wrist Circumference | 176.0mm |
| Calibre | Seiko 4N30 |
| Type | Quartz, Battery Powered |
| Display | Analogue |
| Accuracy | Average Monthly Rate ±15 seconds |
| Battery Life | Approx. 3 Years |
Best Matched With
- Evening Dress
- Silk Blouse
- Tailored Blazer
- Pearl Earrings
- Fine Knitwear
- Stacked Bracelets
- Court Shoes
Frequently Asked Questions
Where are the diamonds on this watch?
Both places. Lab-grown diamonds are set into the case, in an asymmetrical, flowing layout rather than an even row, and there are further diamonds on the dial at one and seven o'clock, held in clover-shaped settings. The diamond-set case is the feature that distinguishes this reference within the collection.
What is mother-of-pearl?
The iridescent inner layer of a shell, cut thin and used as a dial. Seiko uses white mother-of-pearl here. Because it is a natural material rather than a painted finish, the way it catches light shifts as you move your wrist, and no two dials are quite identical.
What are lab-grown diamonds?
Real diamonds, grown in a laboratory rather than mined. They share the crystal structure, the hardness and the way of handling light — what differs is the origin, not the stone.
What is the clover detail?
Two things, connected. On the dial, clover-shaped settings hold the diamonds at one and seven o'clock. On the side of the case, the crown is shaped as a clover to echo them — so the motif carries from the dial round to the part of the watch you handle.
What is the Happy Collection?
A Lukia line Seiko builds around a heart-lifting sparkle — watches meant to colour a woman's everyday life, so that each glance at the wrist brings a happy, positive feeling. On this reference that intention is taken furthest, with the diamond-set case and mother-of-pearl dial.
How long does the battery last?
Approximately three years. City Chain can replace the battery at any outlet, and it is worth having the case seals checked at the same time, since those are what maintain the water resistance over the years.
How accurate is it?
Seiko states an average monthly rate of ±15 seconds for Calibre 4N30 — a quarter of a minute a month at worst, so checking it against your phone two or three times a year is enough.
Can I swim with it?
Yes. Seiko rates it at 10 bar with reinforced water resistance for daily use, which covers washing, rain and swimming comfortably. It carries no diver's designation, so it should not be used for scuba diving. Rinse it in fresh water after a pool or the sea.
How does 21mm wear?
Very small, and that is the intention — Seiko presents it as a jewellery-like miniature. At 21.0mm wide, 29.2mm long and 7.0mm thick it reads as jewellery that tells the time, and at 42 grams it is light enough to forget. It suits petite wrists particularly well. Any City Chain outlet can put it on your wrist.
Will it fit my wrist?
The bracelet is sized to a maximum wrist circumference of 176mm as supplied, and links can be removed to take it smaller. If your wrist measures above that, this is not the right reference — worth checking before you order.
Can the bracelet be adjusted?
Yes. Links can be added or removed within the bracelet's range, and the one-push triple-fold clasp opens on a button rather than a pin. City Chain offers complimentary bracelet sizing at any outlet; bring your warranty book along for the service.
What warranty does this watch come with?
The SSWA015J comes with a 3-year warranty when purchased from City Chain Singapore, an authorised Seiko retailer. Keep your warranty card and proof of purchase — both are required when submitting the watch for service.
Why Buy from City Chain Singapore
- Authorised Retailer 100% genuine Seiko product
- 3-Year Warranty Covered on every purchase
- Bracelet Adjustment Complimentary sizing in store
- Free Shipping All orders within Singapore
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Caliber No.: 4N30
Movement: Battery-powered quartz
Accuracy: ±15 seconds
Battery life: Approximately 3 years
Case material: Stainless Steel
Case Thickness: 7.0mm
Case Diameter: 21.0mm
Length: 29.2mm
Lug Width: 10.0mm
Glass: Curved sapphire
Glass Coating:
Anti-reflective coating on the interior surface
Three-fold clasp with push button release
Water Resistance: 10 Bar
Magnetic Resistance: 4,800 A/m
Weight: 42.0g
Case with Lab-grown diamond dial
Mother-of-pearl dial
Delivery within Singapore | Order by 11AM
(Checkout options may vary depending on minimum order requirements)
• Free Standard Delivery (3 business days)
• Free Next Day Delivery
• Express Delivery at $30 (order by 2PM)
• Click & Collect (ready in 2–3 business days)
Weekend & Public Holiday Orders
Orders placed during this time will be processed on the next business day.
For online purchase, you can have bracelet or leather strap adjustments done at any City Chain store. Please bring along your warranty book for the service.
