Rotary Henley Seamatic Automatic Diver Black Dial Aqua Bezel Stainless Steel Watch (GB05430/80)

Sale price
R 7,160
List price
R 8,950

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The Rotary Henley Seamatic GB05430/80 is a purpose-built automatic diver that marries British horological heritage with serious underwater capability. Engineered to 300 metres of water resistance and powered by a reliable automatic movement, this 42mm timepiece features a striking black dial with distinctive aqua blue accents on the unidirectional ceramic bezel—a design choice that sets it apart in the dive watch landscape. The luminous indices and hands ensure legibility in low-light conditions, while the date window at 3 o'clock adds practical everyday utility.

Housed in a robust stainless steel case with a brushed and polished finish, the Seamatic wears comfortably on a solid three-link stainless steel bracelet. The screw-down crown and case back ensure water integrity, making this a genuine tool watch suitable for serious diving and water sports. At Cassims & Co., we are proud to offer this exceptional timepiece as authorised retailers of ROTARY watches, ensuring you receive full manufacturer warranty and after-sales support.

The automatic movement visible through the exhibition case back delivers smooth sweeping motion and eliminates the need for battery changes, winding naturally with the motion of your wrist. The ceramic bezel insert offers superior scratch resistance compared to aluminium alternatives, ensuring your watch maintains its sharp appearance for years to come. Whether you're exploring the depths or navigating the urban jungle, the Henley Seamatic delivers both technical credibility and distinctive style.

Visit us at our Mall of the South boutique in Johannesburg to experience the Seamatic in person, where our knowledgeable team can assist with sizing and answer any technical questions. We offer nationwide delivery across South Africa, and our watch servicing and repairs team ensures your investment remains in peak condition throughout its lifetime.

Specifications
  • Brand: Rotary
  • Collection: Henley Seamatic Automatic
  • Reference: GB05430/80
  • Movement: Automatic (self-winding mechanical)
  • Case Diameter: 42mm
  • Case Thickness: 14mm
  • Lug to Lug: 48mm
  • Case Material: Stainless steel with brushed and polished finish
  • Bezel: Unidirectional ceramic dive bezel with aqua blue insert
  • Crystal: Scratch-resistant mineral or sapphire crystal
  • Dial Colour: Black with aqua blue accents
  • Markers: Luminous applied indices and hands
  • Date Display: Date window at 3 o'clock position
  • Bracelet: Stainless steel three-link bracelet with folding clasp
  • Bracelet Width: 22mm at lugs
  • Water Resistance: 300 metres (30 ATM / 1000 feet)
  • Crown: Screw-down
  • Case Back: Screw-down with exhibition window
  • Functions: Hours, minutes, seconds, date
  • Origin: British designed
FAQ

Q: Is this a genuine dive watch rated for underwater use?

A: Yes, the Rotary Henley Seamatic is a genuine dive watch with 300 metres of water resistance, a screw-down crown, and a unidirectional rotating bezel. It meets the requirements for recreational diving and serious water sports.

Q: Does the automatic movement require batteries?

A: No, the automatic movement is entirely mechanical and winds itself through the natural motion of your wrist as you wear it. If the watch stops from being unworn for several days, simply wind it manually using the crown or wear it to restart the movement.

Q: What is the power reserve of this automatic watch?

A: While Rotary does not publish specific power reserve figures for this model, most automatic movements of this type offer approximately 38-42 hours of power reserve when fully wound.

Q: Is the bezel made of ceramic or aluminium?

A: The Henley Seamatic features a ceramic bezel insert, which offers superior scratch resistance and colour retention compared to traditional aluminium inserts found on many dive watches at this price point.

Q: Can the bracelet be sized to fit my wrist?

A: Yes, the stainless steel bracelet can be adjusted by removing or adding links. Our team at Cassims & Co. provides complimentary bracelet sizing with your purchase, ensuring a perfect fit before you leave our boutique.

Q: Is this watch suitable for everyday wear or only diving?

A: The Seamatic is equally at home as an everyday timepiece or a dedicated dive instrument. The 42mm case size, automatic movement, and date function make it highly practical for daily wear, while the 300m water resistance ensures it can handle any aquatic activity.

Q: What warranty does this watch carry?

A: As an authorised Rotary retailer, Cassims & Co. provides this watch with a 2-year international manufacturer warranty covering defects in materials and workmanship. The warranty is valid from the date of purchase and requires purchase from an authorised retailer.

Warranty
  • This watch is covered by a 2-year international Rotary manufacturer warranty from the date of purchase
  • The warranty is valid only when the watch is purchased from an authorised Rotary retailer such as Cassims & Co.
  • Coverage includes defects in materials and workmanship under normal use conditions
  • The warranty does not cover normal wear and tear, including scratches, worn coatings, or bracelet stretch
  • Battery replacements are not covered under warranty (though this automatic watch does not require batteries)
  • Water damage resulting from improper use, failure to secure the crown, or damage to seals is excluded
  • Accidental damage, impacts, or damage from unauthorised repairs or modifications void the warranty
  • Warranty service must be performed by authorised Rotary service centres
  • Proof of purchase from an authorised retailer is required for all warranty claims
  • Cassims & Co. will facilitate all warranty claims and provide ongoing after-sales support for the life of your watch
Care Guide
  • Rinse the watch with fresh water after exposure to salt water or chlorine to prevent corrosion and maintain the bracelet's finish
  • Ensure the screw-down crown is fully secured before any water exposure to maintain the 300m water resistance rating
  • Avoid operating the crown or bezel while the watch is submerged underwater
  • Service the automatic movement every 3-5 years to maintain accuracy and water resistance seals
  • Store the watch on a watch winder or ensure it is worn regularly to keep the automatic movement running smoothly
  • Clean the stainless steel case and bracelet with a soft cloth; use a soft brush with mild soap and water for deeper cleaning of the bracelet links
  • Avoid exposing the watch to strong magnetic fields, which can affect the accuracy of the mechanical movement
  • Protect the watch from severe impacts and shocks, though the automatic movement does feature shock resistance
  • Have water resistance tested annually if you regularly use the watch for diving or water sports
  • Never attempt to open the case back yourself, as this will void the warranty and compromise water resistance
Why Buy From Cassim & Co.?
When you purchase the Rotary Henley Seamatic from Cassims & Co., you benefit from our status as authorised Rotary retailers, ensuring your watch carries the full 2-year international manufacturer warranty and genuine provenance. Our experienced team at our Mall of the South boutique in Johannesburg provides complimentary bracelet sizing, expert after-sales support including future servicing coordination, and personalised guidance to help you get the most from your automatic timepiece. We offer secure nationwide delivery across South Africa, and our commitment to your satisfaction extends well beyond your initial purchase.

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