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Blue dial stainless steel chronograph on rubber strap, unidirectional bezel, round 40mm case

Tissot

Tissot T120.417.17.041.00 Seastar 1000 Chronograph watch

SKU CH-KNX4-90HBP MPN T120.417.17.041.00

A Swiss quartz chronograph with a unidirectional bezel, blue dial and rubber strap rated to 1000 m water resistance

  • StyleSport
  • Series NameSeastar 1000
  • MaterialStainless Steel
  • MovementSwiss Quartz
  • AdjustableYes
  • ShapeRound
  • Swiss quartz movement delivers precise timekeeping
  • 1000-metre water resistance suits professional diving
  • Unidirectional bezel enables safe elapsed-time tracking
  • Chronograph function measures intervals with accuracy
  • Stainless steel case with rubber strap ensures durability

Seastar 1000 Chronograph for Men

The Tissot Seastar 1000 Chronograph is a sport watch built for adult men who want a Swiss-made instrument on the wrist. It blends a 1853 heritage with modern quartz precision in a stainless-steel case fitted to a rubber strap.

Unidirectional Bezel Defines Dive Utility

The unidirectional bezel is the single specification that decides suitability: it allows elapsed-time tracking underwater and prevents accidental rotation that would overstate remaining air. Without this feature the watch is not a dive tool.

Rubber Strap with Buckle Clasp Fits Quickly

The 40 mm rubber band fastens with a buckle clasp and is adjustable, so sizing takes seconds on the wrist. The only common issue is the rubber ageing faster than metal in salt water, requiring periodic strap replacement.

Highlights

  • Swiss quartz movement delivers precise timekeeping
  • 1000-metre water resistance suits professional diving
  • Unidirectional bezel enables safe elapsed-time tracking
  • Chronograph function measures intervals with accuracy
  • Stainless steel case with rubber strap ensures durability

Specifications

BrandTissot
ModelT120.417.17.041.00
StyleSport
Series NameSeastar 1000
MaterialStainless Steel
MovementSwiss Quartz
AdjustableYes
ShapeRound
Dial ColorBlue
Dial MarkersDotted Markers
DisplayAnalog
DateDate
ChronographChronograph
Band MaterialRubber
Band Width40
FastenerBuckle Clasp
GenderMen's
AgeAdult
ConditionNew
BezelUnidirectional Bezel
Case BackScrew Down Crown
Case Diameter45.5
Case Material316L Stainless Steel Case
Case Thickness13
CrystalSapphire
Water-Resistant300
Special FeaturesSapphire,Buckle Clasp,Date Display,Screw Down Crown

Questions about this item

What does the 1000 m water-resistance rating mean for daily wear?

The 1000 m rating means the case and crown are tested to withstand pressure equivalent to that depth, so swimming, snorkelling and recreational diving are well within its limits.

How does the Swiss Quartz movement affect timekeeping and maintenance?

Swiss Quartz delivers high accuracy with a battery that typically lasts several years; no winding is needed and the chronograph functions are controlled by pushers.

Will the 40 mm rubber strap and buckle clasp fit a larger wrist?

The 40 mm band width is the lug-to-lug measurement; the rubber strap has multiple holes and the buckle clasp allows fine adjustment for most wrist sizes.

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