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Blue-and-white textured dial with penguin feet, stainless steel 42mm case, Monster bracelet, domed Hardlex crystal

Seiko

Seiko Prospex SRPG57 Save the Ocean Antarctica Dive Watch

SKU CH-57G9-2BERK

Automatic dive watch with ice-tone dial supporting ocean conservation, 200 m water resistance and 24-jewel 4R36 movement

  • Special-edition dial supports ocean conservation
  • Automatic 4R36 movement hacks and hand-winds
  • 200 m water resistance for serious diving
  • 120-click bezel protects the crystal
  • Solid-link bracelet with micro-adjust clasp

Purpose & Audience

The Seiko Prospex SRPG57 is a Save the Ocean special edition dive watch built for recreational divers and daily wearers who want an automatic mechanical movement with a distinctive ice-tone dial. The 4R36 calibre delivers 24 jewels, manual winding and a stop-seconds hack function in a 42 mm stainless steel case.

Bundled Impact

A portion of each sale supports the Fabien Cousteau Ocean Learning Center, linking the purchase directly to marine conservation. The case back is marked as a special edition, while the dial features a textured blue-and-white finish with subtle penguin-foot details and Seiko LumiBrite on hands and markers for low-light legibility.

Compatibility Check

Verify that a 42 mm case diameter, 13 mm thickness and 48 mm lug-to-lug span fit your wrist comfortably. The watch uses a 20 mm lug width and a solid-link bracelet with a pin-and-collar system plus a push-button deployant clasp for micro-adjustment. Water resistance is rated to 200 meters with a screw-down crown and caseback.

Highlights

  • Special-edition dial supports ocean conservation
  • Automatic 4R36 movement hacks and hand-winds
  • 200 m water resistance for serious diving
  • 120-click bezel protects the crystal
  • Solid-link bracelet with micro-adjust clasp

Specifications

BrandSeiko

Questions about this item

Will the 4R36 movement need servicing and how often?

The automatic 4R36 calibre with 24 jewels should be serviced every three to five years by a watchmaker to keep the manual-wind and hacking functions reliable.

What stops the bezel from turning during a long dive?

The 120-click concave dive bezel uses a ratchet mechanism that resists accidental rotation while the screw-down crown and caseback maintain the 200 metre water resistance.

Does the Hardlex crystal and 187 gram weight make the watch hot or noisy on the wrist all day?

Mechanical watches run silently; the stainless case and Hardlex crystal stay at skin temperature and the 187 gram weight is noticeable but not uncomfortable during extended wear.

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