Seiko

1979 Seiko Turtle Diver (Ref. 6306-7001) "JDM"

$ 1,300

The Seiko 6306-7001 is the Japanese Domestic Market (JDM) version of Seiko’s third-generation professional diver, produced from 1976 to 1988. A counterpart to the 6309-7049 made for the American market, the 6306-7001 is powered by a superior movement featuring hacking seconds and a higher jewel count, making it a favorite among collectors and enthusiasts alike.

Housed in the classic “Turtle” case, the watch measures 45mm in diameter, 48mm lug-to-lug, and 13mm thick, with a 22mm lug width. The case design is quintessential Seiko tool-watch: circular brushing across the top, polished flanks and caseback, and a defined mid-case line that adds visual depth. A screw-down crown positioned at 4 o’clock ensures both water resistance and comfort on the wrist.

Additional details include a double-row knurled bezel for improved grip, a bold and highly legible handset, and a quick-set day/date complication. Durable, functional, and purpose-built, the 6306-7000 represents a pivotal moment in Seiko’s dive watch evolution.

Seiko divers of this era also carry notable cultural significance, with related models appearing on the wrists of figures like Ed Harris in The Abyss and Mick Jagger. While many examples have seen extensive use, this piece remains in excellent, original condition, an increasingly scarce find among vintage Seiko divers.

SPECS

Stock # SKO63067001-3
Brand Seiko
Style "Turtle" Diver
Model 6306-7001
Serial 93XXXX
Size Men's
Material Stainless Steel
Dial Matte Black
Millimeters 45
Strap Seiko 2pc Rubber Strap

CASE & BRACELET

The robust and large case retains strong factory dimensions, with gentle signs of use and minimal evidence of prior polishing present. The original bezel insert remains deep black in color, exhibits light wear from use, and retains the luminous pearl. The original screw-down crown is located at 4 o'clock. The case back retains all of its original factory engravings and markings in deep and legible condition. The watch comes supplied with its original Seiko two-piece rubber strap.

DIAL & HANDS

The matte black dial is in perfect condition, showing no damage or notable elements of age. The lume plots feature an ivory coloration and show no degradation when inspected under UV light. The original lume hands have maintained a pale gray coloration and exhibit no degradation when inspected under UV light.

ACCESSORIES 

None. The watch is currently being serviced and will ship once complete if sold before its completion. The watch is backed by a 1-year warranty on accurate timekeeping.