SEIKO LUKIA GROW HEA001JJ AUTOMATIC WOMEN WATCH
HEA001JJ
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- Backordered, shipping soon
- 15% off applied at check-out
- Warranty 3 Years
The Seiko Lukia HEA001J belongs to LUKIA Grow, and it is built around Calibre 2R05 — which Seiko describes as the smallest mechanical watch in Lukia. That is the whole point of it. A watch this size is almost always quartz; this one is a self-winding mechanical, wound by the movement of your wrist and by the crown when you want it running straight away.
The design motif is hypericum, the plant that flowers yellow in early summer and carries round, plump berries by autumn. Seiko gives its flower meanings as sparkle, happiness and calm, and sets the collection against a Spring & Summer theme of a flower garden — growing and blooming. On the watch it comes through as a small case with soft lines, Roman numeral indexes, a rounded crown shaped to be easier to wind, and curved sapphire over the dial. The case measures 28.6mm across and 11.4mm thick, weighs 68 grams complete, carries a date, and is rated to 10 bar.
At a Glance
- BrandSeiko
-
CollectionLukia — LUKIA Grow
- MovementCalibre 2R05 Automatic
- Case Width28.6mm
- Case Thickness11.4mm
- IndexesRoman Numerals
- GlassCurved Sapphire, AR Coated
- CalendarDate
- Power ReserveApprox. 40 Hours
- Weight68g
- Water Resistance10 BAR
- Jewels21
Why You'll Love It
- Seiko calls Calibre 2R05 the smallest mechanical movement in Lukia, and it is what makes this watch unusual — a genuine self-winding mechanical in a 28.6mm case, where almost everything this size runs on a battery.
- No battery to replace. It winds from the movement of your wrist, and the crown winds it by hand when it has been sitting.
- The crown is deliberately rounded, shaped after a hypericum berry and sized to be easy to turn — a small practical detail on a watch this size, where fiddly crowns are the norm.
- Roman numerals rather than batons or stones. It is the more classical choice, and it is what gives a small dress watch its formality.
- Curved sapphire with anti-reflective coating on the inner surface — the harder, more scratch-resistant glass, with the coating protected rather than exposed on top.
- A date on the dial, which is not a given on a watch this small.
- 68 grams complete and 11.4mm thick, so it sits flat under a cuff and you stop noticing it.
- Hypericum is the motif throughout, and Seiko gives the flower's meanings as sparkle, happiness and calm. The collection theme for the season is a flower garden.
- Reinforced to 10 bar for everyday use, which covers washing, rain and swimming without concern.
- A one-push triple-fold clasp rather than a pin buckle — more secure, and easier to fasten with one hand.
Perfect For
- Office & Formal Wear
- Everyday Elegance
- Mechanical Watch Collectors
- Japanese Design
- Petite Wrists
- Evening Occasions
- Milestone Gift
- Gift for Her
Key Features
- Calibre 2R05 mechanical automatic — self-winding with hand winding available, 21 jewels, a power reserve of approximately 40 hours when fully wound, and a seconds-hand stop function. Seiko describes it as the smallest mechanical watch in Lukia.
- LUKIA Grow — a classical, timeless mechanical line within Lukia, set against a Spring and Summer theme of a flower garden.
- Hypericum motif — a plant that flowers yellow in early summer and carries round, plump berries in autumn, with flower meanings Seiko gives as sparkle, happiness and calm.
- Roman numeral indexes on a small case with soft lines.
- Rounded crown, shaped for easier winding.
- Curved sapphire crystal with anti-reflective coating on the inner surface.
- Date calendar alongside the hours, minutes and seconds.
- Stainless steel case — 28.6mm wide, 11.4mm thick and 34.5mm long, at a total weight of 68 grams.
- Bracelet with a one-push triple-fold clasp, fitting a wrist of up to 178mm.
- Accuracy of +45 to -35 seconds per day, with magnetic resistance, behind a screw case back.
- Daily-use reinforced water resistance to 10 bar.
Technical Specifications
The Seiko Lukia HEA001JJ is a mechanical automatic ladies' watch powered by Calibre 2R05 — the smallest mechanical movement in Lukia — with 21 jewels, a power reserve of approximately 40 hours when fully wound and an accuracy of +45 to -35 seconds per day. Functions are a date calendar and a seconds-hand stop function. The stainless steel case measures 28.6mm wide, 11.4mm thick and 34.5mm long at a weight of 68 grams, with curved sapphire carrying anti-reflective coating on the inner surface over a dial with Roman numeral indexes, a rounded crown shaped for easier winding, and a screw case back. It is fitted to a bracelet with a one-push triple-fold clasp sized to a maximum wrist circumference of 178.0mm, and offers magnetic resistance and daily-use reinforced water resistance to 10 bar.
| Model Number | HEA001JJ |
| Case Material | Stainless Steel |
| Case Width | 28.6mm |
| Case Thickness | 11.4mm |
| Case Length | 34.5mm |
| Weight | 68.0g |
| Glass | Curved Sapphire, Anti-Reflective Inner Coating |
| Crown | Rounded, Shaped for Easier Winding |
| Caseback | Screw Case Back |
| Water Resistance | 10 BAR, Daily-Use Reinforced |
| Magnetic Resistance | Yes |
| Indexes | Roman Numerals |
| Motif | Hypericum |
| Hand Indicators | Hour, Minute, Seconds |
| Calendar | Date |
| Clasp | One-Push Triple-Fold |
| Maximum Wrist Circumference | 178.0mm |
| Calibre | Seiko 2R05 |
| Type | Mechanical Automatic with Hand Winding |
| Jewels | 21 |
| Display | Analogue |
| Functions | Date Calendar, Seconds-Hand Stop |
| Accuracy | +45 to -35 seconds per day |
| Power Reserve | Approx. 40 Hours When Fully Wound |
| Hand Winding | Yes |
Best Matched With
- Silk Blouse
- Tailored Blazer
- Wrap Dress
- Fine Knitwear
- Tailored Trousers
- Delicate Jewellery
- Court Shoes
Frequently Asked Questions
What is LUKIA Grow?
A classical, timeless mechanical line within Seiko's Lukia collection. Seiko sets it against a Spring and Summer theme of a flower garden, with the idea of growing and blooming running through the design, and it is the line that introduced Calibre 2R05 — the smallest mechanical watch in Lukia.
What is the hypericum motif?
Hypericum is a plant that flowers yellow in early summer and then carries round, plump berries into autumn, and it is the motif Seiko chose for this watch. Seiko gives the flower's meanings as sparkle, happiness and calm — and the rounded crown is shaped after the berry itself.
What makes Calibre 2R05 unusual?
Its size. Seiko describes it as the smallest mechanical watch in Lukia, which is what allows a self-winding mechanical movement to fit a 28.6mm case. Watches at this size are overwhelmingly quartz, so a mechanical one is a deliberate choice rather than the default.
How does the automatic movement work?
A weighted rotor inside the movement turns as your wrist moves, winding the mainspring. Wearing it through a normal day keeps it running. You can also wind it by hand using the crown, which Seiko shaped to be rounder and easier to turn — the quickest way to start it from cold.
What happens if I do not wear it for a few days?
It stops. The power reserve is approximately 40 hours from a full wind, so a watch set down on Friday evening will usually have stopped by Sunday. Wind it by hand, reset the time and date, and carry on. This is normal for a mechanical watch and does no harm.
How accurate is it?
Seiko states +45 to -35 seconds per day for this calibre. In practice most owners check it against a phone every week or two and adjust as needed. Accuracy varies with how the watch is worn, how much the mainspring is wound, and the position it rests in overnight. The seconds-hand stop function lets you set it against an exact reference.
Does it show the date?
Yes. Seiko lists a date calendar function alongside the hours, minutes and seconds, which is worth noting on a case this small — the space for a date window is not always there.
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, and have the case seals checked at service intervals.
How does 28.6mm wear?
Small and deliberately so. At 28.6mm wide, 34.5mm long and 11.4mm thick this is a compact dress watch that suits petite wrists particularly well, and at 68 grams it is light. It sits flat under a cuff and reads as jewellery as much as a watch. 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 178mm as supplied, and links can be removed to take it smaller. City Chain offers complimentary bracelet sizing at any outlet; bring your warranty book along for the service.
Does a mechanical watch need servicing?
Yes, eventually. A mechanical movement runs on lubricated moving parts that wear over years of use, so a service every few years keeps it running to specification and is also when the case gaskets are replaced. City Chain can arrange servicing through Seiko's authorised service network — bring your warranty book.
What warranty does this watch come with?
The HEA001J 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
Extra $6 OFF with min. $100 spend
Use Code: OCT6
Extra $12 OFF with min. $180 spend
Use Code: OCT12
Extra $25 OFF with min. $350 spend
Use Code: OCT25
Caliber No.: 2R05
Movement: Automatic (with manual winding)
Accuracy: +45 seconds to -35 seconds
Power reserve: Approximately 40 hours when fully wound
21 Jewels
Second hand stop function
Date Display
Case material: Stainless Steel
Case Thickness: 11.4mm
Width: 28.6mm
Height: 34.5mm
Lug width: 13.0mm
Glass material: Curved sapphire (Anti-reflective coating)
Three-fold clasp with push button release
Water resistance: 10 Bar
Weight: 68.0g
Screwback
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.
