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Timex's new stainless-steel automatic divers come with Japanese movements, sapphire crystal

Pictured - the Timex TW2Y87400.
ⓘ Timex - edited
The Timex Expedition Pioneer Automatics come with a Miyota 8215 movement.
The Timex Expedition Pioneer Automatic arrives in stainless steel, with the TW2Y87400 bracelet at $459 and the TW2Y87500 leather at $429. Both run a Miyota 8215 under sapphire, with a sapphire exhibition caseback and a 200 m rating.

Nearly six months after putting a Seiko movement inside a titanium diver, Timex has issued the same watch in steel with a Miyota inside it. The Expedition Pioneer Automatic is available as two different references: TW2Y87400 on a steel bracelet at $459, and TW2Y87500 on brown leather at $429.

The 41 mm case is brushed and polished stainless-steel, and it's rated to 200 m. The watch is protected by a sapphire crystal with anti-glare coating. You also get sapphire in the caseback protecting the movement. Applied indices and the hands come with luminant in-fill, and there is a date window beside three o'clock. The leather strap is sourced through the Leather Working Group and rests on quick-release bars.

Inside, you get the Miyota 8215. It's the same Japanese automatic movement Timex has used for years. The titanium Expedition Pioneer that launched in April used a Seiko NH35a instead — it was a key departure that drove a big part of its coverage. These new steel references return to the older movement.

Titanium versions were priced at $449 on rubber and $549 on the bracelet; the steel bracelet reference TW2Y87400 is cheaper by almost $90 while the leather is $20 below the cheapest titanium. If you're choosing between the two, you are picking between a lighter case with a Seiko caliber and a heavier one with a Miyota.

Timex's feature badges confirm a bidirectional turning top ring, however, the product description on both references describes a unidirectional ratcheting top ring. The former is most likely true, but it might be worth checking this out in person if you plan to almost half a grand on a diver.

The case measures 48 mm lug to lug and is 14 mm tall. Timex hasn't published a power reserve figure; the 8215 is generally quoted at around 40 hours. Both watches are listed on Timex's US store now.

Buy the Timex TW2Y28700VQ on Amazon.

Source(s)

Timex (1) (2)

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> Expert Reviews and News on Laptops, Smartphones and Tech Innovations > News > News Archive > Newsarchive 2026 08 > Timex's new stainless-steel automatic divers come with Japanese movements, sapphire crystal
Anubhav Sharma, 2026-08-20 (Update: 2026-08-20)