Vintage Seiko Diver watches : Seiko 62 Mas, 6105, 6159

I used to have a bigger collection of Vintage Seiko divers watches. However, during the process, I have decided to streamlined and keep only the few that I really like namely Vintage Seiko Diver watches : 62 Mas 6217-8000, 6105-8110, 6159-7000.

1. 6217-8000/1 (OR Seiko 62MAS-010).The 6217-8000/1 was in production from 1965 to 1968. The 6217-8000 model only ran in production for 2 months, (April and May 1965), and was replaced by the 6217-8001. There are minor differences between the models, the most easily observable is that the 6217-8000 is the small crown version. It is generally known as Seiko first automatic diver watch. There have been subtle variations in bezel height through the life of both models. The common name is Seiko 62MAS-010 (62 Model AutoMAtic Selfdater) after the 6217A movement used in the watch.   

2. 6159-7000/1 The production run of the 6159-7000/1 was small and lasted one year from 1968 to 1969. It featured a screw-down crown and the movement was derived from the 6159A Hi-Beat 36000 bph Grand Seiko, manual wind with quickset date. This 25 jewel 6159 movement, was derived from the well-respected 61xx movement that ran the Grand Seiko and was confined to professional Seiko dive watches. The dial reads SEIKO Automatic Hi-Beat at 12 o’clock, and Professional WATER  300m PROOF and with the Suwa symbol at 6 o’clock.    The indices at 6 and 9 o’clock are rectangular, and a divided trapezium is used at 12 o’clock.

3. Seiko 6105-8110. As a diver's tool, the 6105 is a worthy instrument in all regards.  Developed by Seiko in the late 1960s, the large asymmetrical watch boasted 150 meters of water resistance, a bi-directional bezel for dive timing and large swaths of luminescent material for high visibility underwater.

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