Seiko Kinetic

For sale a great example of 1990s Seiko innovation - the Kinetic. You charge it just by wearing it. The movement generates power and stores it in a rechargeable cell. Quartz accuracy, no battery changes, roughly 6 months of power reserve.

The standout feature of this watch is its crystal - neither Hardlex nor sapphire but Sapphlex. In the 1990s Seiko experimented with combining the best of both worlds: Hardlex, their proprietary mineral glass (tough, but prone to scratches), and sapphire (highly scratch-resistant, but brittle - it can shatter on a hard knock). Their answer was Sapphlex: a Hardlex base with a sapphire layer bonded on top. Sapphlex turned out to be more expensive to produce than plain sapphire, so in classic Seiko fashion they quietly dropped the idea and went back to offering either Hardlex or sapphire. That makes Sapphlex crystals a short-lived curiosity of the era.

Upgraded with a brand-new lithium-ion capacitor right before listing, replacing the older original-style power cell. This improves power reserve from approximately 10-14 days to around 4-6 months.

Key Features:
- Stainless steel case and bracelet
- Sapphlex crystal
- 50m water resistance
- Brand-new lithium-ion capacitor

- Condition: A (Excellent) - See full details below

Dimensions:
- Case Diameter: 40.5mm
- Lug tip to lug tip: 47mm
- Thickness: 10.5mm
- Wrist circumference: up to 18cm

High resolution photos:


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Hi there! I’m a long-time watch enthusiast and collector with over 20 years of experience in the hobby. I’m mainly into Japanese watches: Grand Seiko, high-end Seiko, Casio Oceanus — basically anything that offers great value and proper watchmaking without the silly price tags. I like watches that punch above their weight, and that’s exactly the type I tend to buy, wear, and sell.

Every watch I sell is carefully inspected and photographed by me. I take pride in showing the watch honestly — no hidden marks, no stock photos, no surprises. What you see in the pictures is exactly what you’ll receive.

I’m based in Lixnaw, Co. Kerry and have built a solid track record here on Adverts.ie for being straightforward, reliable, and easy to deal with. I don’t entertain lowballing, as my prices are already fair. Lowballers and other 'exotic offer' experts, please ignore this sale.
And just to be fully clear: I’m not looking for swaps or part exchanges. I prefer straight cash sales only.

All my watches are graded using my standardised condition scale:

N (New) — unworn condition. Typically includes full set (box, papers, tags).

S (Like New) — almost indistinguishable from new. No visible scratches or marks. Crystal and case flawless.

A (Excellent) — Lightly worn with minimal signs of use. Minor hairline scratches visible only on close inspection.

V (Very good) — Gently used with only minor signs of use; the crystal may carry minor traces consistent with normal wear, but they do not stand out. Overall condition remains clean and attractive.

B (Good) — Regularly worn with moderate signs of use. Noticeable scratches on case or bracelet; crystal may have faint marks but remains in good condition.

C (Fair) — Clearly worn with pronounced scratches, dings, or crystal marks. Functional but cosmetic wear is obvious; may benefit from servicing.

Cheers!
Jake