Seiko Prospex Ref. SRPF81K1

Seiko Prospex
The Prospex Street Series was developed to combine style and substance, bringing together Seiko fans' enthusiasm for watch design with five decades of expertise in creating diving watches.

The retro "Tuna" shape of the 1975 diver's model has been reimagined in a more compact yet reinforced timepiece—robust enough to dive 200 meters underwater but stylish enough for everyday streetwear. Seiko fans affectionately nickname this watch the "TUNA" due to its larger diameter and bold, can-like shape.

The silicone strap offers both durability and comfort, a design Seiko pioneered in 1975 to accommodate the natural expansion and contraction of a diver's wrist at varying depths.

At its core, this watch features the Seiko in-house 4R35 automatic movement, complete with 23 jewels and a 41-hour power reserve.

The unidirectional rotating bezel ensures precise and secure operation, preventing accidental rotation. This mechanism prevents the elapsed time from being displayed as shorter than it actually is, a crucial feature for divers.

Product Details
Material: Rubber (Silicone)

Color: Blue

Movement Type: Mechanical (Automatic)

Case Color: Stainless Steel

Dial Shape: Round

Case Design: Seiko Tuna

Series: Prospex

Case Diameter: 44mm