Discover the updated version of one of Tissot's main collections with the new Seastar 44mm Powermatic 80. This new edition has undergone a subtle transformation, incorporating a notch along the edges of the case, resulting in a more compact and sophisticated appearance.
This automatic timepiece is the perfect watch for those in search of a sporty yet assertive accessory. Certified according to the ISO 6425:2018 diving watch standard, it meets the strict requirements expected of professional diving instruments. Equipped with a helium escape valve, it is designed to perform reliably during saturation diving by allowing helium particles accumulated inside the case to safely escape during decompression.
The watch is water-resistant up to a pressure of 60 bar (600 metres / 2,000 feet) and offers excellent legibility in low-light conditions thanks to its Super-LumiNova® coated hands and hour markers.
Straps and bracelets can be interchanged using Tissot’s easy-to-use quick strap change system, giving the owner the opportunity to choose from a wide range of compatible Tissot straps and personalise their watch to suit mood or occasion.
Discover the unique aesthetic of this black version with its ceramic bezel ring, dark gradient dial and stainless steel bracelet, staying true to the collection’s signature sporty yet bold appeal while offering exceptional performance both above and below the surface.

About the watch
SKU: T1209071105100
Collection: Sport
Weight (g): 209,00
Warranty: 2 Years of Warranty
Country of manufacture: Switzerland

Case & crystal
Length (mm): 44,00
Width (mm): 44,00
Thickness (mm): 15,29
Lug width (mm): 22.00
Water resistance: Water-resistant up to a pressure of 60 bar (600 m / 2000 ft) with screw-down crown
Case shape: Round
Case material: 316L stainless steel & Ceramic
Case options: Ceramic bezel ring, Anti-clockwise rotating bezel, Screw-down crown and caseback, Helium valve
Bezel material: 316L stainless steel* with ceramic
Luminescent material on case: Super-LumiNova®
Crystal: Sapphire crystal with one antireflective coating on bottom side of crystal

Movement
Movement: Swiss automatic
Power reserve (hours): 80
Functions: Patented Nivachron™ balance spring
Main Functions: Date
Caliber: 11 1/2'''
Diameter (mm): 25,6

Dial
Dial colour: Grey gradient
Luminescent material on case: Super-LumiNova®
Luminescent material on the hands: Super-LumiNova®

Strap
Strap/Bracelet reference: T605052325
Strap material: Stainless steel
Strap colour: Grey
Buckle: Folding clasp with safety lock diver extension and four push-buttons
Bracelet option: Interchangeable quick release bracelet
Links reference: T613052326;T613052327

Reference
T120.907.11.051.00