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SEIKO PROSPEX – Turtle Diver Watch SRP777K1


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Seiko Prospex Turtle Diver Automatic Rubber Strap Watch

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This Seiko Prospex Turtle Diver Watch is perfect for the diver or outdoor explorer. Inspired by a popular Seiko model from the 1970’s, the Turtle has a large cushion shaped case reminiscent of the shape of a turtle’s shell. Although 45mm in diameter, the case is heavily contoured which makes it feel more comfortable than you would expect for a watch of this size.

Water resistant to 200 m/660 ft the Seiko Prospex Turtle Diver Watch has all the attributes you would expect from a professional Diver’s watch. The black dial has high-visibility hour markers and hands coated in Lumibrite. A legible minute track is also at the extreme edge of the dial. Additionally, a black uni-directional turning bezel surrounds the dial. The accordion style strap is in black silicone rubber and can expand and contract to accommodate any changes in wrist size whilst diving. Finally, a day/date window at 3 o’clock is a useful addition and a Hardlex crystal ensures that the dial is protected.

Equipped with an automatic 4R36 calibre movement, the Seiko Prospex Turtle Diver Watch is an absolute must for anyone looking for a comfortable, well-made Diver’s watch. For complete peace of mind, it is also covered by a two year manufacturer’s warranty.

  • Automatic movement calibre 4R36 with manual winding capacity
  • 24 jewels
  • Duration: approx 41 hours
  • Day/Date display
  • Stop seconds hand function
  • Stainless steel case with unidirectional turning bezel
  • Case dimensions: 45mm diameter, 13.4mm deep
  • Black dial – indexes and hands with Lumibrite
  • Silicone strap
  • Hardlex crystal
  • Screw caseback
  • Screw-down crown
  • Water resistant 20 bar (200m)/660ft (diver)
  • Two Year Manufacturer’s Warranty
Additional information

Seiko Prospex



Movement Type

Automatic Mechanical

Case Shape


Dial Colour


Material Type

Stainless Steel

Strap Type


Strap Colour


Water Resistance


Based on 139 reviews
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  1. Caroline P.

    Verified reviewVerified review - view originalExternal link | gbEngland, United Kingdom

    Excellent website that provided the information I needed to ensure I was purchasing the correct strap for my watch. Also excellent customer service which kept me informed of delivery dates.

  2. David G.

    Verified reviewVerified review - view originalExternal link | gbEngland, United Kingdom

    Easy to order and very quick delivery

  3. Anonymous

    Verified reviewVerified review - view originalExternal link

    Excellent transaction. Good communication. Product as described at a fair price (cheaper to get it shipped from the UK than buying local in US!!

  4. Richard Herndon

    Verified reviewVerified review - view originalExternal link | usIllinois, United States

    The watch arrived within a week or so of ordering it, and was in perfect condition.

  5. Victor Lopez

    Verified reviewVerified review - view originalExternal link | usNew Jersey, United States

    impeccable service, fast shipping! will do business again

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