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Tissot SeaStar 1000 two-tone stainless steel 40.00 mm diver watch black dial dotted markers unidirectional bezel sapphire crystal

Tissot

Tissot SeaStar 1000 Two Tone T120.807.22.051.01 40.00 mm 300M Automatic Diver's Watch

SKU CH-GNFV-WCVN8

A 40.00 mm stainless steel diver's watch with automatic movement, sapphire crystal, unidirectional rotating bezel and 300 m water resistance

  • Watch movementAutomatic
  • Product shapeRound
  • Watch face colorBlack
  • Dial markingsDotted Markers
  • Display typeAnalog
  • Date displayDisplay
  • 300 metre water resistance for deep diving
  • Sapphire crystal protects the dial from scratches
  • Automatic movement runs without a battery
  • Unidirectional rotating bezel tracks elapsed time safely
  • 00 mm stainless steel case fits most wrists

Two-Tone Diver for Daily Wear

The Tissot SeaStar 1000 combines stainless steel construction with a two-tone finish for a versatile diver aesthetic. Its 40.00 mm case and 12.48 mm thickness suit a range of wrist sizes while maintaining a professional presence. Automatic movement removes the need for battery changes during regular use. The unidirectional rotating bezel supports timed intervals for sport or utility tasks.

Sapphire Crystal and 300M Rating

A sapphire crystal protects the black dial with dotted markers against everyday scratches and impacts. Water resistance rated to 300M covers swimming, snorkelling and recreational diving without pressure concerns. The stainless steel bracelet resists corrosion from salt water and sweat during active wear. Analog display with a date window keeps essential information legible in bright or dim conditions.

Consistent Automatic Performance

The automatic calibre delivers steady timekeeping through continuous wrist motion rather than short bursts of activity. Power reserve maintains operation overnight or during brief periods off the wrist without manual winding. Unidirectional bezel action remains precise after repeated exposure to sand, salt or pool chemicals. The 12.48 mm case profile balances robust construction with comfort during extended wear sessions.

How it compares

Measured against everything we stock in Analog & Digital Wristwatches, at today’s prices. Recalculated every night.

Price $714.99
Pricier than about 90% of the 2,679 comparable items (median $130.99).

Specifications

Product
Brand nameTissot
Design styleDiver's
Product colorBlack
Watch face colorBlack
Item conditionNew
Display
Display typeAnalog
Size & build
Main materialStainless Steel
Product shapeRound
Strap materialStainless Steel
Bezel typeUnidirectional Rotating Bezel
Housing materialStainless Steel
Case size12.48 mm
Watch glassSapphire Crystal
More details
Watch movementAutomatic
Dial markingsDotted Markers
Date displayDisplay
Suitable forMale

Questions about this item

How do I set the time and date on the automatic movement, and which crown position do people often miss?

Pull the crown to the second position for time, first position for date; the screw-down crown must be fully unscrewed before any adjustment, which is the step most owners skip.

What maintenance will the 300M water resistance require over time?

The screw-down crown, case back and crystal seals should be pressure-tested and the gaskets replaced every two to three years to maintain the 300M rating.

At what point does the 12.48 mm case thickness become noticeable during all-day wear?

The 12.48 mm profile sits flush on most wrists, but becomes apparent under tight cuffs or during extended keyboard work where the dome presses the forearm.

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