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Stainless steel chronograph watch, black dial, curved sapphire crystal, bracelet with deployment clasp

Seiko

Seiko Prospex SFJ003P1 Chronograph Solar 100M 41.97mm

SKU CH-YCTT-T5NA9

Solar chronograph with sapphire crystal, 100 m water resistance and 41.97 mm stainless steel case

  • StyleChronograph
  • MaterialStainless Steel
  • MovementSolar
  • ShapeRound
  • Dial ColorBlack
  • Dial MarkersIndex
  • Solar movement removes battery changes with Caliber 8A50
  • 100 metre water resistance handles swimming and snorkelling
  • Curved sapphire crystal resists scratches and improves readability
  • Stainless steel case and bracelet deliver lasting durability
  • Deployment clasp gives secure one‑hand fastening

Seiko Prospex Solar Chronograph 100M

The Seiko Prospex SFJ003P1 is a stainless steel chronograph powered by a solar movement, eliminating the need for battery changes. Its 41.97 mm case features a curved sapphire crystal and a black dial with index markers. Rated for 100 metres of water resistance, it is built for daily wear and active use.

Suits buyers wanting a solar chronograph

Buyers who need a rotating timing bezel or professional dive certification should look elsewhere. Those preferring a lighter titanium case or a rubber strap will not find them here. The fixed bezel and integrated bracelet define the intended purpose.

Caliber 8A50 solar chronograph movement

The watch runs on the Caliber 8A50 solar movement, which charges from any light source and drives the chronograph functions. This specific calibre determines the accuracy, power reserve and sub-dial layout. Verify that this movement matches your requirements before purchasing.

Highlights

  • Solar movement removes battery changes with Caliber 8A50
  • 100 metre water resistance handles swimming and snorkelling
  • Curved sapphire crystal resists scratches and improves readability
  • Stainless steel case and bracelet deliver lasting durability
  • Deployment clasp gives secure one‑hand fastening

Specifications

BrandSeiko
StyleChronograph
MaterialStainless Steel
MovementSolar
ShapeRound
Dial ColorBlack
Dial MarkersIndex
DisplayAnalog
Band MaterialStainless Steel
FastenerDeployment Clasp
GenderMale
ConditionNew
BezelFixed Bezel
Case BackPull/Push Crown
Case MaterialStainless Steel
Case Thickness41.97 mm
CrystalSapphire Crystal
Water-Resistant100m
Special FeaturesSapphire Crystal,Deployment Clasp,Pull/Push Crown

Questions about this item

How does the solar-powered 8A50 calibre perform once it is on the wrist?

The 8A50 calibre converts light into stored energy, driving the chronograph, date and three sub-dials without any battery changes. A full charge lasts months in darkness, and normal indoor or outdoor light keeps it topped up automatically.

What does the 100 m water-resistance rating actually allow?

The 100 m rating means the watch is safe for swimming, snorkelling and surface water sports. It is not intended for scuba diving or high-velocity water impact.

Will the 41.97 mm case and curved sapphire crystal sit comfortably on a medium wrist?

The 41.97 mm stainless-steel case with curved sapphire crystal and integrated bracelet wears close to the wrist; the deployment clasp allows micro-adjustment for a secure, low-profile fit.

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