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Introducing a new watch design to the Prospex Land collection, the ‘Tortoise’ is inspired by the popular diving watch shape nicknamed by Seiko fans as the ‘Turtle’ because of its shell-like profile.

This practical 2021 timepiece is powered by the 4R automatic calibre movement and includes a rotating compass bezel, crown at 4 o’clock for comfort with highly visible lumibrite on the dial and hands, easy to see in any light.

Prospex is a combination of the words ‘Professional’ and ‘Specifications.’
Seiko Prospex timepieces are designed to be practical, reliable and durable; to meet the high standards required in extreme environments for sports lovers and adventure seekers alike.



Caliber: 4R35
Movement Type: Automatic with manual winding
Duration: Approx. 41 hours


Case Material: Stainless steel
Crystal: Sapphire crystal
LumiBrite: Lumibrite on hands and indexes
Band Material: Stainless Steel

Other Details

Water Resistance: 20 bar/200M

Case Size

Thickness: 11.7mm
Diameter: 42.4mm
Length: 45.2mm

Other Specifications

  • Rotating bezel
  • Screw case back
  • Screw-down crown

Other Features

  • 23 jewels
  • Date display
  • Stop second hand function

Seiko PROSPEX Land Tortoise SRPH17K1

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