Seiko Prospex SPB383J1 1968 Heritage Diver's GMT Automatic 200m 42mm Black Dial Men's Watch
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Product Details
Seiko Prospex SPB383J1 is a 1968 Heritage Diver’s GMT designed for professional diving and travel. Its black dial, black ceramic unidirectional bezel and gold-tone GMT hand provide a clean, high-contrast look while allowing simultaneous tracking of a second time zone.
The watch is powered by Seiko’s Caliber 6R54 automatic GMT movement with manual winding capability, 24 jewels and approximately 72 hours of power reserve. A sapphire crystal with anti-reflective coating, screw-down crown, super-hard coated stainless-steel case and bracelet, and 200-meter diver’s water resistance complete the package.
Technical Specifications
| Brand | Seiko |
| Collection | Prospex Sea |
| Series | 1968 Heritage Diver's GMT |
| Model / SKU / MPN | SPB383J1 |
| Gender | Male |
| Age Group | Adult |
| Condition | New |
| Movement | Automatic GMT with manual winding |
| Caliber | 6R54 |
| Jewels | 24 |
| Power Reserve | Approx. 72 hours / 3 days |
| Functions | Hours, minutes, seconds, 24-hour GMT hand, stop-seconds |
| Case Material | Stainless steel with super-hard coating |
| Case Diameter | 42.0 mm |
| Case Thickness | 12.9 mm |
| Lug-to-Lug | 48.6 mm |
| Crystal | Sapphire crystal |
| Crystal Coating | Anti-reflective coating on inner surface |
| Dial Color | Black |
| Bezel | Black ceramic unidirectional rotating bezel |
| LumiBrite | Hands, indexes and bezel |
| Crown | Screw-down |
| Case Back | Screw case back |
| Bracelet | Stainless steel with super-hard coating |
| Clasp | Three-fold clasp with secure lock, push-button release and extender |
| Lug Width | 20 mm |
| Water Resistance | 200 m / 660 ft Diver's |
| Magnetic Resistance | 4,800 A/m |
| Weight | 176 g |
| Primary Color | Black / Silver / Gold |
Google Merchant attributes: Brand: Seiko; MPN: SPB383J1; Gender: Male; Age group: Adult; Color: Black/Silver/Gold; Material: Stainless steel/Ceramic; Condition: New.
Shipping & Returns
FREE Regular Shipping — 5–6 business days
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Delivery windows are estimates based on business days. Weekends are excluded; U.S. holidays, order verification, destination, or carrier delays may affect arrival. Returns are accepted within 30 days subject to our return policy.
Warranty & Authenticity
Each watch is supplied in its original brand presentation with its unique serial number, original box, warranty card, and applicable manufacturer documentation. The warranty card is activated before the watch is offered for purchase, so no additional registration or activation is required after checkout or after delivery.
Model reference, serial number, and warranty status can be verified at any time through the relevant brand’s available verification channels. Every watch is also inspected by VOLICES before dispatch for authenticity, condition, and package completeness.
In addition to the applicable manufacturer warranty, VOLICES provides a complimentary 1-year limited store warranty for qualifying mechanical or manufacturing defects, subject to our warranty terms. This additional coverage does not replace or limit any manufacturer warranty that may apply.
For warranty assistance, simply contact VOLICES with your order number and watch serial number. Our support team will guide you through the appropriate next step.