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 Robustness

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 use during dives as well as for sporty everyday wear.

Perfect Legibility in Any Environment

The black dial of the Seiko Prospex "Tuna" is equipped with LumiBrite luminous hands and luminous indices that ensure excellent readability in low light conditions. Especially underwater or in darkness, the strength of the luminous elements becomes apparent, which in combination with the high-contrast dial allows optimal time reading. The unidirectional rotating bezel with 60-minute scale provides additional safety when diving, as it precisely measures elapsed time.

Precise Automatic Movement for Highest Reliability

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

Maximum Wearing Comfort and Durability

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 glass protects the dial from scratches and shocks and ensures a long lifespan of the watch.

Technical Highlights at a Glance

• Automatic movement with up to 41 hours power reserve
• Stainless steel case with protective structure for maximum robustness
• Unidirectional rotating bezel with 60-minute scale
• LumiBrite luminous hands and luminous indices for optimal readability
• Hardlex mineral glass for increased scratch protection
• Screwed case back and screwed crown for increased water resistance
• Water resistant up to 20 bar (200 m), certified according to ISO 6425
• Flexible silicone strap for highest wearing comfort

A reliable companion for every occasion

Whether for professional diving missions, sporty adventures, or as a striking companion in everyday life – the Seiko Prospex Automatic Diver’s "Tuna" SRPF81K1 impresses with its outstanding quality, distinctive design, and precise technology. A watch that adapts to any environment while always making a statement.

Delivery details & returns

✔ Free shipping from 99 € to Austria & Germany

(below: AT 4,90 €, DE 5,95 €)

🌍 Attractive international shipping rates:

USA: only 30 $, from 2.000 $ free shipping

CA: only 50 CAD, from 1.500 CAD free shipping

UK: only 20 £, from 1. 500 £ free shipping

Switzerland and Norway: 25€

EU: 14,90 €

🔁 Free return if the product does not fit or does not meet expectations.

📦 Return label on request by mail or phone

(no label in the package - for environmental reasons)

As an official dealer, we offer the manufacturer's warranty for all our brands. Watches are guaranteed for 24 months. The warranty covers material and manufacturing defects.