Seiko 6125-7000 & 6159-7001 history, study and comparison

Seiko 6125-7000 & 6159-7001 history, study and comparison

Postby koimaster » January 6th 2018, 11:23pm

Posted At the Seiko forum in 2015 by Itau Senior Member

The history of the divers passes through the two professional Seiko references 6215-7000 and 6159 to 7001. The story begins in 1967, Seiko produced from two years his first diver (he came later than the Rolex, for example) the 6127-8000 (the iconic 62mas) but shortly after its launch resulted with features smaller than the rising market of the diver, professional and / or amateur, as demanding. Seiko began to move through its most important man, Ing. Tokunaga, to win the competition and to provide, as from philosophy Seiko (this even today) the best possible in the world, without any kind of compromise.
It born in 1967 the reference 6215-7000, whose main features are innovative:
-large mono block case, massive tonneau;
-300 m depth;
-high strength glass hardlex;
-absolutely robust construction;
- rubber strap;
That is to say, the sub par excellence, the Subamariner Rolex (not sea dweller), had in the same year features much lower:
tonneau case in three parts of 39mm;
depth 200 m
plastic glass;
building not as robust;
bracelet light metal;
The stylistic choice for the dial was that of glossy black, with indexes of large, very visible, tritium light, flat baton hands of considerable size, generous crown at 4, rotating bezel in both directions, with reversed depth. The caliber that animated this diver was the 6215 derived from the heavy 6217 (62mas and other watches), sturdy, dependable but not the best of the production of that time.
The reference 6215-7000 remained in production for a little over a year, the pieces sold very few and for the high cost and because the professionals who needed this type of watches were few and this was not a fashion or trend watch, then anyone who bought a 300 meters was because he needed really.
But the perfectionism of Seiko led quickly to introduce the new variant, in 1969, of the professional 300 meters, the 6159-7001, whose most relevant change was the movement 6159, the top in Seiko production, that is an hi-beat 36,000 vibrations that equipped the Grand Seiko; caliber refined, innovative and highly prized; updating the rest of the stylistic 6215 in small details, without touching the case that remains the same. The 6159-7001 remains in production for a little over a year, then disappears, the Seiko came back in the professional market only in 1975 with the innovative Tuna 6159-7010 that is not the subject of this study but that is considered one of the diver most important in the history of watchmaking.
Here they are in pictures ... rison.html


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