Seiko 5 “Open Heart” White Dial— 7S26 Exhibition Automatic Watch.

Seiko 5 “Open Heart” White Dial— 7S26 Exhibition Automatic Watch.

Flip it over and watch it breathe.

This is the Seiko 5 that lets you see the engine: a display caseback framing the 7S26 automatic in motion — the oscillating rotor swinging with every movement of your wrist, winding the mainspring as you go. On the front, a clean brushed-white dial, applied polished batons, sharp dagger hands, framed day-date at 3. It’s the classic Seiko 5 formula with the back panel opened up so the mechanics become the show.

The 7S26 is one of the most produced and most trusted automatic movements on earth — a genuine 21-jewel, self-winding day-date caliber that built Seiko’s modern reputation for mechanical watches that just work. This one has been serviced and held to the timegrapher until the rate settled true, and dressed on a glossy black leather strap for a clean, formal wrist.

An honest note: this is a modern Seiko 5, not a 1970s vintage piece — the exhibition back and 7S26 movement place it in Seiko’s contemporary automatic line. That’s exactly its appeal: a see-through mechanical automatic, fully working and ready to wear, at an accessible price.

The Details
◦ Movement — Seiko 7S26 automatic, 21 jewels, self-winding
◦ Reference — 7S26-0450 (caseback)
◦ Case — 36mm stainless steel, exhibition caseback
◦ Dial — Brushed white, applied batons
◦ Function — Day / Date, English calendar
◦ Strap — Black leather (18mm)
◦ Origin — Made in Japan
◦ Power reserve — 20hr+ on a full wind

Why buy from Bengal Curator
✅ Only 1 in this store – buy today
✅ Fully serviced & timegrapher-verified before listing
✅ 6-month warranty
✅ Easy returns on arrival — inspect before you commit
✅ Free tracked & insured shipping, nationwide
✅ Arrives in a premium leather presentation box

A see-through automatic at this price is the easiest way into mechanical watches — and a clean one on leather doesn’t sit around. One available. If you’ve ever wanted to actually see the movement that keeps time on your wrist, this is it.

৳5,700 — today.

Curated, serviced, and stood behind — by Bengal Curator.