Seiko Prospex King Samurai Automatic Blue Dial Diver's Watch 200m SRPF79K1

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R 14,995

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The Seiko Prospex SRPF79K1 King Samurai is a distinguished automatic diver's watch that exemplifies Seiko's legendary commitment to robust engineering and oceanic conservation. Part of the acclaimed Save The Ocean Special Edition series, this timepiece features a captivating deep blue dial and matching silicone strap, echoing the majestic hues of the manta ray and our planet's most vital marine ecosystems. With a bold 43mm stainless steel case, unidirectional ceramic-insert bezel, and 200-metre water resistance, the SRPF79K1 is engineered for serious underwater exploration whilst maintaining a striking presence on the wrist.

At the heart of this Prospex diver beats the reliable Seiko Calibre 4R35 automatic movement with manual winding capability, delivering approximately 41 hours of power reserve and featuring 23 jewels for smooth, enduring performance. The blue sunburst dial is appointed with generously sized luminous markers and hands for optimal legibility in low-light conditions, complemented by a date window at 3 o'clock with magnifying crystal for enhanced readability. The sapphire crystal features an anti-reflective coating on the inner surface, ensuring clarity in all lighting environments whilst protecting against scratches and impacts.

As an authorised Seiko retailer, Cassim & Co. is proud to offer this exceptional King Samurai with full manufacturer warranty and comprehensive after-sales support. Our experienced team at our Mall of the South boutique in Johannesburg can guide you through the technical specifications and help you experience the substantial wrist presence and impeccable finishing of this professional dive watch in person. Should you require any future servicing, our watch servicing and repairs specialists are equipped to maintain your Prospex to the highest standards, ensuring decades of reliable performance.

The SRPF79K1 represents exceptional value within the mechanical diver's watch segment, combining Swiss-level finishing with Japanese reliability at an accessible price point. The comfortable 22mm silicone strap is purpose-built for aquatic pursuits yet transitions seamlessly to everyday wear, whilst the 48.7mm lug-to-lug measurement ensures a balanced fit across a wide range of wrist sizes. For those seeking to explore the full spectrum of Seiko's horological expertise, we invite you to browse our full range of SEIKO watches, from elegant Presage dress watches to high-specification Prospex dive instruments. With nationwide delivery available across South Africa, owning this remarkable Save The Ocean timepiece has never been more convenient.

Specifications
  • Reference Number: SRPF79K1
  • Movement: Seiko Calibre 4R35 automatic with manual winding
  • Power Reserve: Approximately 41 hours
  • Jewels: 23
  • Case Material: Stainless steel
  • Case Diameter: 43mm
  • Case Thickness: 12.8mm
  • Lug-to-Lug: 48.7mm
  • Lug Width: 22mm
  • Bezel: Unidirectional rotating stainless steel with ceramic insert
  • Crystal: Sapphire with anti-reflective coating on inner surface and magnifier over date
  • Dial Colour: Blue sunburst
  • Markers: Luminous applied indices
  • Hands: Luminous
  • Complications: Date display at 3 o'clock
  • Water Resistance: 200 metres (20 ATM) diver's
  • Strap Material: Blue silicone rubber
  • Strap Width: 22mm
  • Clasp: Pin buckle
  • Gender: Men's
  • Collection: Prospex Save The Ocean Special Edition
  • Barcode/GTIN: 4954628238900
FAQ

Q: What is the Save The Ocean Special Edition series?

A: Seiko's Save The Ocean Special Edition watches are designed to raise awareness for marine conservation, with each model featuring blue dial and design elements inspired by ocean life. A portion of proceeds supports oceanic preservation initiatives. The SRPF79K1 specifically honours the manta ray with its deep blue aesthetic.

Q: Is the 4R35 movement reliable for daily wear?

A: Absolutely. The Seiko Calibre 4R35 is a proven workhorse movement used across Seiko's mid-range collections, offering excellent reliability, accuracy within approximately -15 to +25 seconds per day, and the convenience of both automatic winding and manual winding capability. With proper care, this movement will provide decades of dependable service.

Q: Can I actually dive with this watch to 200 metres?

A: Yes, the SRPF79K1 is a genuine ISO-certified diver's watch with 200-metre water resistance, unidirectional bezel, and luminous markers—fully suitable for recreational SCUBA diving. However, we recommend having the water resistance tested annually if you regularly expose the watch to water, especially after battery changes or case opening. Our servicing team can perform this test.

Q: What wrist size does the 43mm case suit best?

A: With a 43mm diameter and 48.7mm lug-to-lug measurement, the SRPF79K1 wears comfortably on wrists from approximately 16cm to 20cm. The relatively short lug-to-lug distance prevents overhang on smaller wrists, whilst the bold proportions satisfy those seeking a substantial presence. We encourage you to try it on at our boutique for the perfect fit assessment.

Q: How often should I service this automatic watch?

A: Seiko recommends a complete service every 3-5 years for automatic movements, depending on usage patterns. This involves dismantling, cleaning, lubrication, and regulation to maintain optimal performance. Our authorised service centre can handle all Seiko maintenance requirements with genuine parts and factory-trained technicians.

Q: Can I replace the silicone strap with a bracelet or other straps?

A: Yes, the standard 22mm lug width accepts any aftermarket strap or bracelet. Many owners enjoy swapping between the original blue silicone for water activities, leather straps for dressier occasions, or stainless steel bracelets for a more refined aesthetic. We stock a selection of quality straps and can assist with fitting.

Q: Does this watch have luminous features for night diving?

A: Yes, the SRPF79K1 features Seiko's LumiBrite luminous material on all hour markers and hands, providing excellent visibility in darkness or underwater low-light conditions. The luminosity charges quickly under light exposure and glows strongly for hours, making it ideal for night diving or simply checking the time in darkness.

Warranty
  • This Seiko Prospex SRPF79K1 is covered by a 3-year international manufacturer's warranty from the date of purchase.
  • The warranty is valid only when the watch is purchased from an authorised Seiko retailer such as Cassim & Co.
  • Coverage includes manufacturing defects in materials and workmanship under normal use conditions.
  • The warranty does not cover normal wear and tear, including scratches, strap wear, or crystal damage from impact.
  • Water damage resulting from improper use, failure to have gaskets replaced during servicing, or operating the crown underwater is excluded.
  • Battery replacement, routine servicing, and accuracy regulation are not covered under warranty.
  • Damage caused by accidents, misuse, unauthorised repairs, or modifications voids the warranty.
  • The warranty requires presentation of the original purchase receipt and completed warranty card.
  • All warranty servicing must be performed by authorised Seiko service centres to maintain coverage validity.
  • Cassim & Co. facilitates all warranty claims and can provide guidance on the claims process and servicing arrangements.
Care Guide
  • Rinse the watch with fresh water after exposure to salt water or chlorinated pool water to prevent corrosion and maintain the silicone strap's integrity.
  • Avoid operating the crown or pushers whilst underwater or when the watch is wet, as this may compromise water resistance.
  • Keep the watch away from strong magnetic fields (speakers, magnetic clasps, MRI machines) which can affect timekeeping accuracy.
  • Store your automatic watch on a watch winder if not worn regularly, or ensure you wind it manually every few days to maintain lubrication within the movement.
  • Have the water resistance tested annually if you regularly dive or swim with the watch, particularly after any servicing that involves opening the case back.
  • Clean the silicone strap periodically with mild soap and water, using a soft brush to remove any accumulated dirt or sweat from the textured surface.
  • Avoid exposing the watch to extreme temperature fluctuations, solvents, chemicals, or prolonged direct sunlight which may degrade the silicone strap or affect movement performance.
  • If the watch stops running, manually wind it approximately 40 times clockwise to restart the movement before wearing.
  • Service the movement every 3-5 years through an authorised Seiko service centre to maintain warranty validity and optimal performance.
  • Avoid impacts and shocks when possible, although the 4R35 movement features Seiko's Diashock protection system for enhanced shock resistance.
Why Buy From Cassim & Co.?
When you purchase the Seiko Prospex SRPF79K1 from Cassim & Co., you're not just acquiring an exceptional timepiece—you're gaining the assurance that comes with buying from an authorised Seiko retailer with full manufacturer warranty support. Our experienced team at our Mall of the South boutique in Johannesburg provides personalised service including complimentary bracelet sizing, expert fitting advice, and comprehensive after-sales care. With our in-house watch servicing capabilities, nationwide delivery across South Africa, and decades of horological expertise, we ensure your ownership experience matches the quality of your Seiko Prospex.

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