Prospex Marinemaster 1965 Heritage Diver's Watch. Distinguished by its blend of functionality and aesthetics, this extraordinary timepiece, part of the first globally launched watch series to bear the “Marinemaster” name, features the first see-through screwdown caseback on a Seiko diver’s watch, as well as an elegantly chamfered case and bezel and a flexible double-curved bracelet for a comfortable fit. Based on Seiko’s and Japan’s first diver’s watch from 1965, this exceptional timepiece extends the Prospex tradition of celebrating its rich legacy of innovation in high-intensity timekeeping by re-creating and re-interpreting signature achievements with today’s finest technology and materials. Visible beneath the caseback, the thin, but exceptionally accurate, 26-jewel 6L37 movement beats at a frequency of 28,800 vibrations per hour and provides a power reserve of approximately 45 hours and manual winding capability. Framed by a uni-directional rotating elapsed timing bezel, the distinctively patterned grayish- green dial offers LumiBrite hands and markers. As rugged as it is stylish, this premium diver’s watch, following ISO standards for scuba diving, is crafted of stainless steel with a durable super-hard coating and features a box-shaped sapphire crystal with anti-reflective coating on the inner surface, screwdown crown, and a tri-fold push button release clasp with secure lock and extender. Packaged in a special collectors’ box. 200m Water Resistant
| Case | Stainless steel |
| Case Size | 39mm |
| Movement | Automatic |
| Dial | Grey |
| Functions | Date |
| Power Reserve | 45 hours |
| Water Resistance | 200m |
| Bracelet | Stainless steel |
Shipping
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Complimentary Two-Day Shipping on purchases over $100. Order processing can take up to 3-5 business days.
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We currently only ship domestically within the United States. Orders ship Monday through Thursday, excluding public holidays, via standard overnight service with signature required, per our insurance policy. Shipping delivery must be confirmed by the recipient in order to ship out the order. If a package is undeliverable and returned to us, additional shipping charges may apply for reshipment.
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Shipping fee for watch straps and accessories is flat $35. Please note: all watch parts are FINAL SALE.
Inspection Upon Delivery
Please carefully inspect your package at the time of delivery. If the outer packaging appears damaged, opened, resealed, punctured, or otherwise tampered with, we kindly ask that you refuse delivery. Please inform the carrier that you are declining the shipment due to suspected damage or tampering.
If possible, take clear photographs of the package—showing the condition of the box, shipping label, and any visible damage or broken seals—before returning it to the carrier.
Please note that by accepting the package, you acknowledge that the outer box appears intact and untampered with at the time of delivery.
Exchanges & Store Credit
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Eligible items may be exchanged or returned for store credit within 3 business days of receipt. No refunds.
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To request an exchange or store credit, contact Customer Service at customerservice@chpremier.com or reply to your confirmation email to initiate the process.
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Items marked “Final Sale”, including all watch parts, promotional/discounted merchandise, and financed purchases (e.g., Affirm, Shop Pay Installments), are not eligible for return, exchange, or store credit.
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Returns due to change of mind or buyer’s remorse will not be accepted.
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Merchandise must be in original, unworn condition, with the protective blue tag attached. Items showing signs of wear, alteration, or damage will not be accepted.
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A shipping and restocking fee applies to all approved returns/exchanges.
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We reserve the right to refuse any return that does not meet the above requirements.
Our online policies may differ from our in-store policies. The above terms apply only to online purchases.
