
Tap the image to enlarge

Seiko 'Japanese Zen Gardens' in Fern Green 41.8mm Mens Watch Limited Edition
Ref. SSA463J1
See more premium optionsHide
Stepping up in the same colour and case shape
Prospex SSC965P1 'Youngtimer' Mint Green Bracelet Watch - W25531£640
Alpinest 38mm Mens Watch Green£650
Speedtimer ‘Racing’ Solar Chronograph 41.5mm Mens Watch Green£690
Alpinist Compass Bearing Function 39.5mm Mens Strap Watch£690
Prospex Alpinist Automatic GMT 39.5mm Mens Watch Green Dial Strap Watch£1,100
The dial is the centrepiece here: a deep fern green surface with a three-dimensional Karesansui pattern — the raked sand and gravel motif of a Japanese dry garden — finished to a high gloss. An open-heart aperture at nine o'clock reveals the automatic 4R39 calibre beneath, with a gold-coloured seconds hand sweeping across it. Curved minute and seconds hands sit above the dial, their hands treated with LumiBrite. A dual-curve sapphire crystal covers everything, and the case measures 41.8mm in stainless steel, worn on a matching bracelet with a three-fold clasp.
- Reference
- SSA463J1
- Brand
- Seiko
- Case size
- 41.8mm
- Case thickness
- 12.5mm
- Lug width
- 20mm
- Case material
- Stainless steel
- Case shape
- Round
- Dial
- Green
- Crystal
- Sapphire
- Movement
- Automatic
- Calibre
- 4R39
- Functions
- Skeleton dial
- Water resistance
- 30m
- Bracelet / strap
- Stainless steel bracelet
- Strap colour
- Silver
- Clasp
- Deployant clasp
- Lume
- LumiBrite
- Retailer
- Mappin & Webb
Additional specifications
- Lug-to-lug
- 48.4mm
- 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.
Also in 6 collections
This watch appears in Back in Stock (3,229), Stainless Steel Watches (3,088), Automatic Watches (1,763), Green Dial Watches (417), Skeleton Watches (314) and Limited Edition Watches (209).
What the specifications mean
A mechanical watch for everyday wear.
Strengths
- 48.4mm lug-to-lug keeps the 41.8mm case wearable
- Sapphire crystal, which resists scratching
- Luminous hands and markers for low light
Worth knowing
- 30m means keeping it away from water
Price history
This watch is currently at its highest recorded price. It was £480 on 10 August. Prices are checked every day, and we record any changes.
Seiko 'Japanese Zen Gardens' in alternatives
Watches from other brands at a similar price, style and size, so you can see what else your budget can buy.
| Specification | SSA463J1 | 98A293 | PWRAA0323 |
|---|---|---|---|
| Price | £500 | £499 | £469 |
| Case size | 41.8mm | 41.7mm | 42mm |
| Water resistance | 30m | 30m | 50m |
| Movement | Automatic | Automatic | Automatic |
| Strap | Stainless steel bracelet | Stainless steel bracelet | Stainless steel bracelet |
| Power reserve | 41 hours | 42 hours | 40 hours |
| This watch | Closely matched |
|
Your new watch
Frequently asked questions, and things you should know about this watch
Can I swim with it?
No. At 30m it will survive rain and handwashing, but not submersion of any kind.
Water resistance explainedWill the glass scratch?
Unlikely. Sapphire is second only to diamond in hardness and shrugs off everyday marking.
Sapphire, mineral and acrylic comparedDoes it need a battery?
No. It is automatic — the motion of your wrist winds it, and there is no cell to replace.
Quartz, automatic and solar comparedHow 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 48.4mm, which suits wrists from roughly 16.5cm (6½ inches) upward.
Lug-to-lug decides fit more than case diameter does.
How to size a watch to your wristIs it a men's or women's watch?
Listed as men's.
Cheapest place to buy
Mappin & Webb is the only UK retailer we track stocking this reference, so there is nothing to compare it against today.
Has the price changed recently?
It's currently at its highest recorded price. It's ranged between £480 and £500, today it's £500.
More Seiko watches like the 'Japanese Zen Gardens' in
In stock, and close on style and price










