Seiko Nautilus Open Heart Automatic 40mm – Orange
Seiko Nautilus Open Heart Automatic 40mm – Orange
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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 Nautilus Open Heart Automatic 40mm – Orange
Sapphire over the dial, stainless steel round it, and water resistance to 100 m — 40 mm across, so it sits without taking over.

40 mm case
At 40 mm it reads as a proper watch without taking over the wrist.
Sapphire crystal
Sapphire is the hardest thing you can put over a dial, and it keeps the view clear.
100 m water resistance
Water resistance to 100 m means rain, a sink and a swim are simply not a consideration.
Three materials, one honest case
Sapphire is the part that decides whether you are still reading through a clear face in a year, and it is what sits over this dial. The case is stainless steel at 40 mm, which is the size that reads as a full watch on most wrists without crowding a cuff. Water resistance to 100 m takes rain, a sink and a swim off the list of things to think about.
What size and clarity together say
Nobody compliments a watch this plain, and that is the whole design of it. It gets read at the distance of a handshake, on the hand that is gesturing or holding a glass, and the estimate of you moves a notch. The second look is where that happens.
What sits outside the facts
A heavier wrist, oddly welcome
A watch with some weight to it changes how you hold your hand, slightly and permanently. You will notice it on the stairs and you will like noticing it.
There is a plain pleasure in something built out of hard materials and then left alone. You put it on for yourself, and the rest of the room is incidental.
What you are getting
- Case size
- 40 mm
- Crystal
- Sapphire crystal
- Water resistance
- 100 m water resistance
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.
Where this lot stands
Short series, and the next one will differ in the details — a restock is not guaranteed.
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.