Seiko 5 Sports Automatic Open Heart 42mm
Seiko 5 Sports Automatic Open Heart 42mm
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Shipping, Delivery & Exchanges
Shipping, Delivery & Exchanges
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- Estimated Delivery: 5–12 Business Days
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DESCRIPTION
Watches — watch
Seiko 5 Sports Automatic Open Heart 42mm
An open face that lets you watch the thing work, on a nylon strap that keeps it honest about being worn.

42 mm Sport Case
A case at 42 mm sits where the eye lands first, with no need to announce itself.
The movement
The visible mechanical section adds depth and character to the face
Nylon Strap
Nylon keeps the watch light and forgiving when the wrist is working.
Why the open section keeps pulling your eye
The cut-away section turns the face into something with a floor and a ceiling instead of a flat print. Because it is automatic, the movement you give it through the ordinary swing of an arm is all it ever asks for. The nylon strap keeps the whole piece light enough to forget.


How a working face reads to strangers
People do not ask about a watch; they take a reading and move on. At close range this watch hands them something to linger on — a face that is clearly doing something — and they place you a notch higher without saying so. The second look is where it all happens.
A thing worth admitting aloud
Putting it on, most mornings
There is a half-second after the strap closes when you check the face for no reason at all.
Wear it through a run of ordinary mornings and it keeps itself going; leave it aside and it simply waits for you.
What you are getting
- Case size
- 42 mm
- Movement
- The visible mechanical section adds depth and character to the face
- Strap
- Nylon Strap
Why it costs what it costs
We hold this stock ourselves and send it out from our own shelves. No boutique floor to pay for, nobody taking a cut in between — one step from our rack to your door instead of four. The piece is not cheaper; the route is shorter.
Store offer
Two pieces get you a cap. Three get you a cap and a wallet.
It runs across the whole store, so the pieces do not have to match.
- Any two items — a cap goes in the box, free.
- Any three or more — the cap plus a wallet.
Since the batch was tiny
It came in as a small series, and the pieces never thin out at the same pace — a restock is not guaranteed, and the next one will not be identical.
Pick yours above.

Italian Heritage Since 1975
Founded in Italy in 1975, Arkon began as a family business driven by a passion for timeless men’s fashion and refined craftsmanship. What started as a small Italian house has grown into a recognized name in contemporary luxury, bringing together tradition, sophistication, and modern design.
Today, Arkon carries its heritage forward, creating a vision of menswear for those who believe true style is timeless.