SOLD — Seiko 6306-7001 Third Diver



For your consideration is a August 1978 6306-7001 Third Diver. An extremely desirable Seiko diver’s watch that will be the best one in your collection. All components are completely original to the watch. The crystal is original and has a minor chip on the edge.


The watch is completely original unto itself and I would rate the cosmetic condition as very good. The case has all of the original surface brushing on the upper surface and has not been polished; retaining all of its original case lines. There is one minor imperfection on the caseback. The dial and hands are in excellent condition and retain their original luminous material.  The insert has some patination and has faded to blue, which is consistent for these watches. The watch comes with a new Seiko DAL1BP rubber band.

Service and Warranty

I serviced this watch on 03/03/2022. That process includes a full cleaning and evaluation of all movement components and proper lubrication. Lubricants used were Moebius synthetic varieties appropriate for this watch movement type. The movement has two custom produced, American made jewels in the ports of the barrel arbor. The amplitude of the balance wheel is 250-270 range and the rate is (+/-) 2 sec/day. The case back and crown all have new, and factory correct seals.  The crown was mechanically rebuilt to replace the gasket. This watch comes with a 100% money back promise of originality and a 1-year limited warranty on the movement from the time of sale.

Shipping through USPS 2-day. Non-US buyers — I ship with a flat rate using USPS International priority.