Tissot Seastarprofessional Grey Dial Automatic Men 44mm T1209071105100

Engineered for deep-sea exploration and robust maritime endurance, the Tissot Seastar Professional Powermatic 80 44mm T120.907.11.051.00 combines high-performance aquatic functionality with full-steel luxury sports styling. Built inside a commanding 44 mm 316L stainless steel case with a matching multi-link steel bracelet, this professional diver features a dramatic grey-to-black gradient sunray dial, a unidirectional rotating dive bezel with an engraved 60-minute scale, 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, professional 300-metre water resistance, and diver-extension versatility, it is equipped for serious underwater expeditions and commanding executive presence.

Key Highlights

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

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

• Dramatic Grey-to-Black Gradient Dial: Smokey sunray dial shading from luminous silver-grey at the center to deep abyssal black along the outer minute track.

• Unidirectional Rotating Dive Bezel: High-grip knurled bezel featuring an engraved 60-minute graduation scale with a luminescent pip at 12 o'clock for accurate dive-time monitoring.

• Solid 316L Stainless Steel Architecture: Case and multi-link bracelet forged from surgical-grade stainless steel with alternating satin-brushed surfaces and mirror-polished chamfers.

• Professional 300-Metre Water Resistance: Pressure rated for 30 bar (300 m / 1,000 ft) with a screw-down crown and screw-down case back for dependable underwater sealing.

• Scratch-Resistant Sapphire Crystal: High-clarity sapphire glass treated with an anti-reflective coating on both faces for crisp, reflection-free visibility under water and in direct sunlight.

• Transparent Exhibition Case Back: Sapphire crystal case back displaying the decorated Powermatic 80 movement, balance assembly, and signed rotor.

• Steel Bracelet with Diver Safety Clasp: Multi-link stainless steel bracelet equipped with a secure folding safety clasp, push-pieces, and an interchangeable quick-release system.

• Official Tissot International Warranty: Fully covered worldwide under Tissot’s 2-year authorized manufacturer guarantee.

Design & Craftsmanship

Maritime Heritage & Full-Steel Architecture

Designed to withstand the extreme pressures of the ocean while delivering refined sports-watch proportions, the Seastar Professional collection represents Tissot's deep connection to aquatic timekeeping. In this full stainless steel reference, the 44.00 mm case delivers commanding wrist presence, balanced by ergonomically curved lugs that drape comfortably around the wrist. The substantial 316L steel construction provides reassuring heft and durability against boat surfaces, diving gear, and daily wear.

Smokey Grey Gradient Dial & Underwater Visibility

The gradient dial captures the subtle play of light descending into ocean depths, transitioning from cool metallic grey to midnight black. Large, applied geometric indices and wide sword hands are generously coated with high-grade Super-LumiNova®, emitting a clear blue-green glow to ensure instantaneous time checks in murky waters or dark ambient conditions.

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 an entire weekend off the wrist. Its patented Nivachron™ balance spring provides critical protection against magnetic fields produced by boat motors, underwater navigation equipment, and everyday electronics.