The history of Seiko Dive Watches goes back to 1965 with their very first model. From then on Seiko have lead the way in innovation, design technology, materials and style. You may have already looked at the Seiko Tuna and Samurai divers’ watches – here we look at the Seiko Turtle dive watch.
Seiko Turtle – quick links
- FOR SALE – Seiko Turtle dive watches [UK sellers]
- FOR SALE – Seiko Turtle dive watches [USA sellers]
- Introduction to the Seiko Turtle
- Seiko Prospex authorised dealer
- Specification
- Spring Bars (strap pins) for Seiko Turtle
- Video Reviews
- Old Turtle versus New Turtle
- References
An introduction to the Turtle
In 1976 Seiko released the first of their “cushion cased” or “turtle shell” style diver’s watches. The Seiko 6306 & 6309 were produced from 1976 (1) until 1988. Recognisable from their soft cushion shaped case these watches also featured a recessed crown at the 4 o’clock position and day / date indicators. Both models were driven by an automatic (mechanical self wind) movement.
Recently Listed for Sale
Click the links below to browse the latest Seiko Samurai dive watches added to Chronodivers.com in the last couple of days. Watches have been sorted to sellers from the UK and the USA. It’s worth checking both categories as many sellers will ship worldwide.
UK – Seiko Turtle Dive Watches listed for sale
Seiko Turtle Diver’s Watch Save The Ocean Sne518p1
Posted in : Seiko Turtle - UK sellers
Posted : 3rd April 2020 4:00 pm- TC-9 Bronze Automatic Divers Watch – 300m WR – Seiko Movement. Turtle Design
Posted in : Seiko Turtle - UK sellers
Posted : 3rd April 2020 2:30 am - ORIGINAL SEIKO TURTLE AUTOMATIC DIVERS WATCH 6309 7040 RARE NON SUWA SHORT TEXT
Posted in : Seiko Turtle - UK sellers
Posted : 2nd April 2020 1:00 pm - SEIKO PROSPEX SRPC91K1 Turtle Automatic Diver’s 200M Men’s Watch
Posted in : Seiko Turtle - UK sellers
Posted : 1st April 2020 11:30 pm
USA – Seiko Turtle Dive Watches listed for sale
- Seiko Prospex Diver Scuba Third Turtle
Posted in : Seiko Turtle - USA sellers
Posted : 3rd April 2020 4:15 pm - Seiko Prospex 3Rd Diver Turtle
Posted in : Seiko Turtle - USA sellers
Posted : 3rd April 2020 2:45 am - Seiko Automatic Prospex King Turtle Divers 200M Men’s Watch SRPE05
Posted in : Seiko Turtle - USA sellers
Posted : 2nd April 2020 1:15 pm - SEIKO Turtle SRP777j PROSPEX automatic DIVER MEN’S WATCH Japan Version MINT!
Posted in : Seiko Turtle - USA sellers
Posted : 1st April 2020 11:45 pm
Specification (current models)
The Seiko Turtle was re-introduced in 2016. Available in 4 variants
- steel with black dial / bezel (SRP777)
- steel with black / gilt detailing (SRP775)
- steel with blue detailing (SRP773)
- steel with “pepsi” red & blue detailing (SRP779)
Since then Seiko have added a couple of new variants
- steel with PADI red & blue details (SRPA21K1)
- all black tactical version (SRPC49K1)
Exterior
- Case Material : Stainless steel
- Glass Material : Hardlex
- Band Material : Silicon
- Case Thickness : 13.4㎜
Case Diameter : 45㎜
Movement
- Calibre Number : 4R36
- Movement Type : Automatic with manual winding capacity
- Duration : Approx. 41 hours
- Accuracy : +45 to -35 seconds per day
Other Details
- LumiBrite : Lumibrite on hands and indexs
- Water Resistance : 200m / 660ft diver’s
Features
- 24 jewels
- Day/Date display
- Screw case back
- Stop seconds hand function
- Unidirectional rotating bezel
Old Turtle versus New Turtle
The main differences between the new Seiko Turtle watches and those from 1978 to 1988 (6306 / 6309) are as follows (2)
- Case depth increased from 13mm to 14mm
- Addition of a softer silicone strap (previously harder rubber)
- The lollipop on the seconds hand was moved from head to tail
- Seiko 6309 – 17 jewel automatic movement – non-winding non-hacking changed to Calibre 4R36 with 24 jewels with hand wind and seconds stop function.
Video Reviews
Seiko Turtle PADI SRPA21K1 Prospex Review
John Egerton’s thoughts on the popular PADI Turtle re-issue from Seiko. Is it worth it?
Seiko Prospex SRPA21 “PADI Turtle” One Week On the Wrist
Ankit Blanket’s review of the Seiko SRPA21 “PADI Turtle” dive watch after one week …
Authorised Seiko Prospex shopping partner
Our online shopping partner sells the entire range of Seiko Prospex dive watches. Shop with confidence at Jurawatches. Get the assurance of a genuine Seiko Prospex watch from an authorised dealer.
This is what our shopping partners say about the Seiko Prospex range
“Discover our stunning collection of Seiko Prospex watches designed especially for sport lovers and adventurers in mind. Since the first Seiko Prospex Divers watch was released in 1965, the brand have continued to challenge and expand on their designs to create a range of Japanese diving and sport watches that provide exceptional functionality and striking visual appeal”
Spring Bars (watch strap pins)
We sell replacement spring bars suitable for Seiko Turtle dive watches. These high quality stainless steel pins have been made to the same dimensions as the original Seiko C220FS part. The main dimensions of the FAT Seiko spring bar have been reproduced here:
- High quality – rust proof stainless steel
- Primary diameter = 2.5mm
- Width when 95% compressed = 22mm
- Pip diameter (the end that locates in lugs) = 1.1mm
- BUY NOW >> 22mm FAT Seiko Turtle Spring bars
If you found this page via a search engine – please pop over to our generic Seiko Divers watch page. You will find plenty more information on iconic styles from Japan’s leading manufacturer of quality dive watches. The complete current range has been summarised here – Seiko Prospex Dive Watch range
External references / further reading
- (1) Adventures in Amateur Watch Fettling
- (2) Fratello Watches – Seiko 6306
- (3) The Watch Bloke – 6306-7001