1977 Seiko Diver (Ref. 6309-7049)

$ 1,125

This highly popular Seiko Diver is the third generation, produced from 1976-1988. The 7049 was produced for the North American market, while the 7040 was produced for the Japanese market and the rest of the world. Measuring 45mm wide, 48mm long, and 13mm thick, with 22mm lugs, this is a large watch that wears very comfortably for its size. 

The case has circular brushing on top, and polished sides and bottom, separated by a distinct case line. The screw-down crown is located at the 4 o'clock position, for increased water resistance, and ease of use. The bezel is a 60-click, bi-directional, with a black aluminum insert that is slightly angled toward the crystal from the outer edge. The bezel also features a double row of knurling for added grip. Featuring a NOS Seiko Hardlex mineral glass crystal, which is flat with a frosted edge. 

The dial is matte black, with each hour marker lured.  The 12, 6, and 9 makers are larger trapezoid shapes. The dial also features a day-date window at the 3 o'clock position. A large day/date window is at 3 o’clock. Market "Seiko, Automatic," beneath the 12 o'clock, and “Water 150m Resist” above the six o'clock position. Along the lower outer edge, the dial reads "6309-740X T

The 6309 features the recognizable Seiko large arrowhead minute hand, broad hour hand, and lollipop second hand which were designed to be seen in conditions of the lowest visibility.

The Seiko caliber 6309 movement is a 17 jewel automatic and runs forever. The day-date has a quickset mechanism, accessed by pulling the crown out one notch and turning it one way to advance the day, and the other way to advance the date. 

This reference can be seen on Ed Harris in the film "The Abyss," and Mick Jagger has been photographed in it as well. More often than not these watches were purchased and used for their intended dive purposes, which reflect wear and tear. but this specific example is in excellent original condition.  

Stock # SKO63097049
Brand Seiko
Style Diver
Model 6309-7049
Serial 74XXXX
Size Men's
Material Stainless Steel
Dial Black
Millimeters 45
Bracelet 2pc Rubber Tropic Strap



The strong case has been very lightly polished in the past and shows honest signs of light use. The bezel insert is an early service replacement and remains in flawless condition. The case retains its original unsigned screw-down crown. The case back retains all of its original factory markings in deep and legible condition, the case back also exhibits a hand engraving that appears to read "Brykalski", likely the last name of the original owner. The watch will come supplied on a 2pc rubber tropic strap.


The matte black dial is in very well preserved condition showing minimal marks and no major signs of age. The lume plots have aged to achieve a beautiful and vibrant yellow coloration and display no degradation when inspected under U.V. light. The original lume hands have aged a few shades darker than the dial and exhibit no degradation under U.V. light inspection. 


None. The watch is keeping time and functioning perfectly, previous service history is unknown.

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