So far Seiko released 18 different Turtles since the re-edition in 2015. Here an overview. All of the re-issue New Seiko Turtle use the caliber 4R36 automatic movement which beats at 3Hz (21,6000 kph), with a power reserve of approximately 40 hours. SEIKO...
And such a good example of Seiko's ability to fairly rapidly flood the market with choices for virtually everyone! Thank you for pulling all this together. I'm ashamed I haven't got one yet, but I do have this 6309 pre-Turtle on my bench and I guess I sho...