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Discover the perfect combination of legendary diving heritage, distinctive styling and dependable Japanese watchmaking with the Seiko Prospex Sea Turtle SRPE99K1. Designed for those who appreciate exceptional functionality and timeless sports watch design, this impressive automatic diver's watch delivers the strength, reliability and performance associated with Seiko's renowned Prospex collection.
The SRPE99K1 features Seiko's iconic Turtle-shaped stainless steel case, recognised for its distinctive rounded profile and comfortable fit on the wrist. Measuring 45mm in diameter, the robust case provides a bold yet practical design, while its carefully contoured construction makes it suitable for both underwater adventures and everyday wear.
The striking blue dial is complemented by a distinctive red and blue unidirectional rotating bezel, commonly known as the Pepsi bezel. This eye-catching combination adds a classic diving watch character while offering practical functionality for monitoring elapsed dive time. Large, easy-to-read hour markers and hands are generously coated with Seiko's LumiBrite luminous material, ensuring excellent visibility in low-light conditions and underwater environments.
At the heart of this remarkable timepiece is the dependable Seiko Calibre 4R36 Automatic Movement, featuring 24 jewels and an approximate 41-hour power reserve. Powered by the natural movement of the wearer's wrist, the watch operates without a conventional battery and also offers manual winding for added convenience. The stop-seconds function allows precise time setting, while the practical day/date display provides useful everyday functionality.
Built for serious water activities, the Seiko Prospex SRPE99K1 offers 200-metre diver's water resistance, making it suitable for recreational scuba diving when properly maintained and operated according to Seiko's instructions. The screw-down crown and screw case back provide additional security and protection against water intrusion, while the unidirectional rotating bezel supports safe monitoring of elapsed time.
The dial is protected by Seiko's durable Hardlex crystal, offering reliable protection for everyday activities. Completing the watch is a solid stainless steel bracelet fitted with a secure three-fold clasp, push-button release and extender, providing additional convenience when wearing the watch over diving equipment.
The combination of its striking blue dial, iconic Pepsi bezel, robust stainless steel construction and dependable mechanical movement makes this timepiece an excellent choice for both professional-looking sports watch styling and practical everyday performance.
Whether you're exploring the underwater world, expanding your automatic watch collection or searching for a distinctive and meaningful gift, the Seiko Prospex Sea Turtle SRPE99K1 delivers an outstanding combination of heritage-inspired design, mechanical craftsmanship and reliable diving functionality.
Backed by a 3-Year Manufacturer's Warranty, this genuine Seiko timepiece is available at Stonex Jewellers Otahuhu, both online and in-store.
Brand: Seiko
Collection: Prospex
Series: Prospex Sea – Turtle Diver's
Model Number: SRPE99K1
Gender: Men's
Movement Type: Japanese Automatic with Manual Winding
Calibre Number: Seiko 4R36
Power Reserve: Approximately 41 Hours
Jewels: 24
Case Material: Stainless Steel
Case Diameter: 45.0mm
Case Thickness: 13.4mm
Dial Colour: Blue
Bezel: Red and Blue (Pepsi-Style) Unidirectional Rotating Bezel
Crystal: Hardlex Crystal
Bracelet Material: Stainless Steel
Bracelet Colour: Silver Tone
Clasp: Three-Fold Clasp with Secure Lock, Push-Button Release and Extender
Lug Width: 22mm
Water Resistance: 200 Metres / 660 Feet – Diver's
Luminescence: LumiBrite on Hands, Hour Markers and Bezel
Day/Date Display: Yes
Crown: Screw-Down Crown
Case Back: Screw Case Back
Stop-Seconds Function: Yes
Manual Winding: Yes
Weight: Approximately 195g
Battery: Not Required – Automatic Mechanical Movement
Warranty: 3-Year Manufacturer's Warranty (subject to confirmation for NZ stock)
Reliable Seiko 4R36 Automatic Movement: Japanese mechanical movement featuring 24 jewels, manual winding and approximately 41 hours of power reserve.
Professional 200M Diver's Water Resistance: Designed for underwater activities, including recreational scuba diving.
Iconic Turtle Case Design: Distinctive rounded stainless steel case combines classic Seiko diving heritage with everyday comfort.
Striking Blue Dial and Pepsi Bezel: Eye-catching blue dial complemented by a red and blue unidirectional rotating bezel.
LumiBrite Illumination: Luminous hands, hour markers and bezel markings provide excellent readability in low-light conditions.
Hardlex Crystal: Durable crystal helps protect the dial from everyday wear.
Day and Date Display: Convenient dual-calendar display for everyday practicality.
Screw-Down Crown and Screw Case Back: Secure construction designed to support dependable water resistance.
Stainless Steel Bracelet: Strong, comfortable bracelet with secure locking clasp and convenient extender.
3-Year Manufacturer's Warranty: Added confidence and peace of mind, subject to applicable warranty terms.
Free express shipping on New Zealand orders over $100, dispatched within 1–2 business days. Same-day Click & Collect is available from our Ōtāhuhu, Auckland showroom — choose Click & Collect at checkout.
Covered by the official manufacturer’s warranty against defects in materials and workmanship. Every item sold by Stonex Jewellers is 100% authentic and brand-new.
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