Tissot Seastarprofessional Grey Gradient Dial Automatic Men 44mm T1209073705100

Engineered for deep-sea exploration and high-intensity aquatic performance, the Tissot Seastar Professional Powermatic 80 44mm T120.907.37.051.00 combines professional diver capability with a stealth tactical aesthetic. Built inside an athletic 44 mm 316L stainless steel case treated with durable black PVD coating, this dive watch features a smokey grey gradient dial, a unidirectional rotating black ceramic bezel, high-visibility Super-LumiNova® indices, an exhibition sapphire case back, and the Swiss Powermatic 80 automatic calibre fitted with an anti-magnetic Nivachron™ hairspring. Delivering an autonomous 80-hour power reserve, 300-metre water resistance, and an ergonomic rubber dive strap, it is equipped for deep-water expeditions and everyday land wear.

Key Highlights

• Swiss Automatic Powermatic 80 Calibre: Self-winding mechanical movement beating at 21,600 vibrations per hour, providing an extended 80-hour power reserve.

• Patented Nivachron™ Balance Spring: High-tech titanium-alloy hairspring delivering superior resistance against magnetic fields, temperature fluctuations, and mechanical shocks.

• Dramatic Grey Gradient Sunray Dial: Smokey grey dial transitioning from a lighter center to deep abyss black at the outer track, accented by bold luminous hour batons.

• Unidirectional Rotating Ceramic Bezel: Scratch-proof black ceramic bezel insert with an engraved 60-minute dive scale and a luminescent pip at 12 o'clock for accurate dive-time monitoring.

• Black PVD 316L Stainless Steel Case: Surgical-grade stainless steel treated with an ultra-durable black Physical Vapor Deposition (PVD) finish with satin-brushed and polished bevels.

• Professional 300-Metre Water Resistance: Pressure rated for 30 bar (300 m / 1000 ft), featuring a screw-down crown and screw-down case back for maximum underwater sealing.

• Scratch-Resistant Sapphire Crystal: High-durability sapphire crystal treated with an anti-reflective coating on both faces for distortion-free underwater legibility.

• Exhibition Sapphire Case Back: Transparent crystal window on the reverse side showcasing the decorated Swiss movement, balance assembly, and signed rotor.

• Ergonomic Black Rubber Dive Strap: Flexible, moisture-wicking synthetic rubber strap fastened with a black PVD stainless steel pin buckle and quick-release system.

• Official Tissot International Warranty: Fully covered worldwide under Tissot’s authorized manufacturer guarantee.

Design & Craftsmanship

Maritime Heritage & Tactical Architecture

Designed to meet the rigorous demands of underwater exploration, the Seastar collection represents Tissot's deep connection to maritime timing. Sized at 44.00 mm, the case delivers commanding wrist presence and maximum dial legibility. The black PVD tactical finish absorbs light reflections, while the knurled ceramic bezel offers positive, tactile grip even when handled with diving gloves.

Smokey Gradient Dial & Low-Light Visibility

The dial captures the transition of ambient light descending into ocean depths, shading from a misty grey core to deep black edges. Large faceted indices and sword hands are generously coated with high-grade Super-LumiNova®, emitting a clear glow to ensure instantaneous time checks in murky water or total darkness.

Powermatic 80 Engine with Nivachron™ Resilience

Beneath the dial beats the Swiss-made Powermatic 80 automatic calibre. Delivering up to 80 hours of power reserve, the watch remains fully wound across a three-day weekend off the wrist. Its patented Nivachron™ balance spring provides critical protection against magnetic fields emitted by dive computers, boat engines, and modern mobile technology.