Seiko Prospex SRPL51 – Automatic Diver

Precision Blue, Built for Adventure

The Seiko Prospex SRPL51 is a professional-grade diver’s watch designed for those who push boundaries—whether beneath the waves, in the sky, or on land. Inspired by one of Seiko’s most iconic diving styles, this model refines the original’s angular silhouette into a sleeker, more compact profile for enhanced comfort without sacrificing durability.

Its striking blue dial captures the depth and allure of the ocean, framed by a matching blue unidirectional rotating elapsed timing bezel for precise dive tracking. LumiBrite-coated hands and markers ensure excellent legibility in low light, while the magnified date calendar offers practical clarity. Built with a stainless steel case and bracelet, screwdown crown, and screwdown caseback, the SRPL51 follows ISO standards for scuba diving and is water resistant to 200 meters.

At its heart beats the dependable Caliber 4R35 automatic movement, offering both manual and automatic winding capabilities, a 21,600 vibrations-per-hour beat rate, 23 jewels, and approximately 41 hours of power reserve. This is a watch engineered for performance, reliability, and style—ready for any adventure.

✅ Why You’ll Love It
✔️ Professional diver’s watch with ISO-certified 200m water resistance
✔️ Blue dial & bezel inspired by the ocean’s depth and clarity
✔️ Caliber 4R35 automatic movement with manual winding capability
✔️ Durable stainless steel construction with secure tri-fold clasp and extender
✔️ LumiBrite hands and markers for exceptional visibility underwater

Features

Model: Seiko Prospex SRPL51 – Automatic Diver

Design: Inspired by Seiko’s most iconic diving watch styles, reimagined with a sleeker, more compact profile

Dial: Blue with LumiBrite hands and markers

Bezel: Blue uni-directional rotating elapsed timing bezel

Calendar: Magnified date display

Caseback: Screwdown

Clasp: Tri-fold push button release clasp with secure lock and extender

Technical Data

Case Dimensions

• Diameter: 41.7 mm

• Thickness: 12.3 mm

• Lug-to-lug: 49.5 mm

• Lug Width: 20 mm

Movement

• Type: Automatic with manual winding capability

• Caliber: 4R35 – 23 jewels

• Frequency: 21,600 vibrations per hour

• Power Reserve: Approx. 41 hours

Materials & Build

• Case: Stainless steel

• Crystal: Hardlex crystal

• Strap: Stainless steel bracelet

Water Resistance

• 200 meters / 660 feet (ISO-certified for scuba diving)

For more details, visit the official Seiko website.

Warranty

This watch comes with Seiko’s official 3-year warranty, offering peace of mind and long-term reliability.

Important Store Info

▶︎Processing Time & Shipping Policy
▶︎Refund policy
▶︎We only carry SEIKO USA products.
▶︎Unfortunately, we DO NOT ship internationally.