One of the great things about a watch brand with uninterrupted ownership is the continuity of design. Arguably, the best examples of this are seen with Seiko and Rolex. In this first installment, I’d like to cover the someone mundane 12 o’clock marker in Seiko’s non – shrouded dive watches.
The bisected shield first came to exist in their 6159 professional 300m dive watch that was released in 1968.
It later reappeared (in silver) in the 6105.
By the time the 6309 came, the modified shield was bisected – literally by a sword.
In the year 2000, when the SBDX003 (the original 6159 Professional 300m tribute) reissue first came out, the original shield returned. First in gold, and later in silver for the regular production SBDX001.
A slight variation of this was seen in the Spring Drive SBDB001 as well. Note that the marker appears to be integrated into the dial.
I realize that these design elements may seem trivial, but to me they remind me of the unbroken lineage in their dive watches.
INTERESTING WATCHES 
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