Tissot Seastar 1000 Automatic Black Dial Men's Watch T120.407.17.051.00

Items Description

The Tissot Seastar 1000 Automatic Black Dial Men's Watch T120.407.17.051.00 presents a commanding black-on-black aesthetic that defines the modern diver’s essential tool. With a 43mm stainless steel case, a unidirectional black ceramic bezel, and a deep matte black dial, this timepiece delivers a purposeful, stealthy look without sacrificing readability. Powered by the Powermatic 80 automatic movement, the Seastar 1000 offers an 80-hour power reserve, significantly outperforming traditional mechanical calibers. Engineered to withstand pressures up to 30 bar (300 meters), it remains a credible companion for recreational diving and daily aquatic exposure alike.

 

The Black Dial variant of the Seastar 1000 emphasizes versatility and visual discipline, pairing its monochrome face with a robust three-link stainless steel bracelet secured by a folding clasp with a diving extension. A sapphire crystal, treated with anti-reflective coating, protects the dial from scratches and glare, while SuperLumiNova applied to the hands and hour markers ensures legibility in low-light conditions. The exhibition case back reveals the movement in motion, merging technical transparency with the solid presence required of a 300-meter water-resistant watch. This piece balances the heritage of Swiss dive-watch tradition with the reliability required for everyday wear.

 

Key Advantages of the Tissot Seastar 1000 Automatic Black Dial Men's Watch T120.407.17.051.00

 

1. Powermatic 80 Automatic Movement with Extended Power Reserve

The Seastar 1000 is driven by the Powermatic 80 caliber, an automatic movement that transforms winding efficiency into a significant practical advantage. Unlike conventional movements offering roughly 38-42 hours of autonomy, this Swiss-made mechanism provides a full 80 hours of power reserve, allowing the watch to remain running after a weekend off the wrist.

 

• 80-Hour Reserve: Keeps accurate time from Friday evening through Monday morning without winding.
• Nivachron Balance Spring: Resists magnetic fields common in laptops, speakers, and phones.
• Visible through Exhibition Case Back: Observe the decorated movement’s rotor oscillation and gear train.
• Smooth Seconds Hand: The 4 Hz (28,800 vph) beat rate produces a gliding sweep characteristic of fine mechanical watches.

 

2. Diver-Grade Construction and 300-Meter Water Resistance

Built to ISO 6425 dive-watch standards, the Seastar 1000 Black Dial model offers every essential feature for underwater use. Its screw-down crown and screw-down case back create a sealed environment that withstands the pressures found at 300 meters (1,000 feet), while the unidirectional black ceramic bezel provides safe elapsed-time tracking without accidental movement.

 

• Screw-Down Crown: Prevents accidental pull-out and ensures a watertight seal.
• Ceramic Bezel Insert: Scratch-resistant and fade-proof, maintaining its deep black finish over years of use.
• 120-Click Unidirectional Bezel: Precision alignment for dive timing, with luminous pip at 12 o’clock.
• Automatic Helium Escape Valve: (Model-dependent) Releases gas during saturation diving, protecting crystal integrity.

 

3. Matte Black Dial and SuperLumiNova Visibility

The black dial of this specific reference is crafted for both stealth and function. Its matte texture reduces glare underwater and in bright sunlight, while the applied hour markers and skeletonized hands are coated with SuperLumiNova for sustained brightness in total darkness. This combination ensures that the watch remains legible whether you are exploring a deep reef or simply reading the time at a dimly lit event.

 

• SuperLumiNova Grade A: Provides intense blue-green glow initially and fades gradually over hours.
• Anti-Reflective Sapphire Crystal: Minimizes reflections on the dial for clear time-reading from any angle.
• Oversized Hands: Full-coverage lume markers ensure the minute and hour hands are easily distinguishable in low light.
• Black Date Window at 3 o’clock: Integrated into the dial without breaking the monochrome theme.

 

4. Monochrome Styling and Tactile Presence

This Black Dial variant distinguishes itself within the Seastar 1000 family through its cohesive monochrome palette. The black ceramic bezel, black dial, and brushed stainless steel case create a high-contrast yet understated appearance that pairs equally well with a wetsuit, business casual attire, or a streetwear look. The 43mm diameter and 12.7mm thickness give the watch a solid wrist presence without being overly bulky, while the folding clasp with a dive extension accommodates wear over a winter jacket or a shorty wetsuit.

 

• Color Consistency: Black bezel, dial, and hour markers—no color mismatches or overly bright accents that limit styling.
• Brushed and Polished Finishes: The case features brushed top surfaces for daily scratch resistance and polished chamfers for subtle shine.
• Secure Folding Clasp: Includes a height-adjustable micro-extension for perfect fit over or under a wetsuit.
• Weight and Balance: The all-stainless-steel construction provides a reassuring heft that feels substantial without being overly cumbersome.

 

5. Swiss Made Certification and Heritage

Assembled in Tissot’s Le Locle workshops in Switzerland, the Seastar 1000 Automatic carries the “Swiss Made” designation, guaranteeing that at least 60% of its manufacturing value originates in Switzerland and that final assembly and quality control occur there. Tissot, a founding member of the Swatch Group, has been producing reliable, affordable Swiss watches since 1853. This model continues that tradition by offering a level of movement finishing, case engineering, and water resistance that rivals watches at significantly higher price points.

 

• Movement Assembly: Performed in Switzerland with Swiss-origin components.
• Case and Bracelet: Manufactured and finished in Tissot’s dedicated facilities.
• Quality Control: Each piece tested for water resistance, accuracy, and bezel alignment before leaving the factory.
• Heritage: Over 170 years of Swiss watchmaking expertise informs the Seastar line’s design philosophy.

 

The Tissot Seastar 1000 Automatic Black Dial Men's Watch T120.407.17.051.00 delivers professional-grade dive watch capability in a form that suits everyday life. Its 80-hour Powermatic 80 movement eliminates the need for constant winding, its 300-meter water resistance handles serious aquatic environments, and its black-on-black design ensures the watch looks appropriate in any setting. For those who want a reliable Swiss automatic watch that can swim, dive, and accompany them through daily routines without compromise, the Seastar 1000 in black remains a compelling choice.

Specifications of Tissot Seastar 1000 Automatic Black Dial Men's Watch T120.407.17.051.00

Brand Name	Tissot
Model number	T1204071705100
Part Number	T1204071705100
Model Year	2018
Item Shape	Round
Dial window material type	Sapphire Crystal
Clasp	Hidden Clasp
Case material	Stainless Steel
Case diameter	43 millimeters
Case Thickness	12.7 millimeters
Band Material	Fabric
Band width	21 millimeters
Band Color	Black
Dial color	Black
Bezel material	Stainless Steel with a Black Ceramic Ring
Calendar	Date
Movement	Automatic
Water resistant depth	300 Meters
Display Type	Analog

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Specifications
[Brand Name ]	Tissot
[Model number ]	T1204071705100
[Part Number ]	T1204071705100
[Model Year ]	2018
[Item Shape ]	Round
[ Dial window material type ]	Sapphire Crystal
[Clasp ]	Hidden Clasp
[Case material ]	Stainless Steel
[Case diameter ]	43 millimeters
[Case Thickness ]	12.7 millimeters
[Band Material ]	Fabric
[Band width ]	21 millimeters
[Band Color ]	Black
[Dial color ]	Black
[Bezel material ]	Stainless Steel with a Black Ceramic Ring
[ Calendar ]	Date
[ Movement ]	Automatic
[ Water resistant depth ]	300 Meters
[Display Type ]	Analog

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