Seiko PROSPEX SRP777J “Turtle” 6309 Reissue

Seiko PROSPEX SRP777J “Turtle” 6309 Reissue

This product is currently out of stock and unavailable.

  • Description
  • Additional information

Seiko has finally gotten with the program and made a modern version of the iconic 6309-7040 diver.  The new PROSPEX branded diver is slightly larger than the original, and features the 4R36 movement, based on the 7S26 workhorse that has powered Seiko's entry divers for 20 years.  The SRP777J features  "Made in Japan" dial text.  Artifice HoroWorks offers the SRP777J stock, or with modifications.

  • Black dial and bezel, polished hands
  • Seiko Lumibrite luminous dial index and hands
  • Hacking handwinding automatic movement
  • English and French Day wheel text
  • 21,600 bph
  • Power reserve: approximately 41 hours
  • 24 jewels
  • Day/Date calendar
  • Screwdown crown and caseback
  • Unidirectional divers bezel


  • 45mm diameter without crown (46.6mm with crown)(width) x 47.5mm (height)
  • 22mm lug width
  • 43.35 lug to lug
  • 13.26mm thick


  • Black or Bond (black /gray striped) NATO strap
  • Double Dome sapphire, blue or gold AR
  • UDT, MM300, 6105 hands (subject to availability).  Please email for other hands options.

Completely stock, or stock with NATO straps, will ship within 5 business days.  Watches with hands and/or crystal upgrades  will be subject to the same 4-8 week turnaround all other custom watches are.

Watches ship in an AHW protective case with tags.  No manual is included.

*Please indicate selections for sapphire AR, hands, and strap options in the indicated text field above "add to cart."*

Each watch will be verified for chapter ring alignment and any issues resolved, and receive an initial adjustment with the aid of a timegrapher before shipping.

** Should the need arise, warranty work, even on stock watches, will be handled in-house. **