Seiko Prospex Automatic Divers Tuna SRPF81K1

Seiko Prospex Automatic Diver's "Tuna" SRPF81K1 – An Icon of Dive Watches

The Seiko Prospex Automatic Diver's "Tuna" SRPF81K1 is a true legend among dive watches. Inspired by the professional Seiko dive watches that have been known for their reliability and technical excellence for decades, this model combines premium materials with a robust construction and excellent functionality. Whether underwater or on land – this timepiece guarantees the highest precision and durability.

Distinctive Design and Exceptional Durability

Seiko stays true to its iconic design language: The massive stainless steel case is coated with a special finish that makes it more resistant to corrosion and external influences. The characteristic protective structure surrounding the case resembles a tuna can – hence the nickname “Tuna.” Thanks to this unique design, the watch withstands even the most demanding conditions and is ideal for diving as well as active everyday use.

Perfect Legibility in Any Environment

The black dial of the Seiko Prospex "Tuna" features LumiBrite luminous hands and markers that ensure excellent readability in low light conditions. Especially underwater or in the dark, the strength of the luminous elements becomes apparent, which combined with the high-contrast dial allows optimal time reading. The unidirectional rotating bezel with a 60-minute scale provides additional safety when diving by accurately measuring elapsed time.

Precise Automatic Movement for Maximum Reliability

Inside the Prospex "Tuna" works a proven Seiko automatic movement known for its durability and accuracy. The caliber offers a power reserve of up to 41 hours and can be wound both automatically by wrist movement and manually. The screw-down case back and screw-down crown contribute to the high water resistance, which reaches up to 20 bar (200 meters) – a true dive watch according to ISO standards.

Maximum Wearing Comfort and Resistance

The watch comes with a high-quality silicone strap that is not only extremely durable but also comfortable to wear. It fits perfectly to the wrist and remains flexible and resilient even when wet. The Hardlex mineral crystal protects the dial from scratches and shocks, ensuring a long lifespan for the watch.

Technical Highlights at a Glance

• Automatic movement with up to 41 hours power reserve
• Stainless steel case with protective structure for maximum durability
• Unidirectional rotating bezel with 60-minute scale
• LumiBrite luminous hands and markers for optimal readability
• Hardlex mineral crystal for enhanced scratch protection
• Screw-down case back and screw-down crown for increased water resistance
• Water resistant up to 20 bar (200 m), ISO 6425 certified
• Flexible silicone strap for highest