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Premium Member
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Selym said:
I think the last character in the movement-case number denotes the bezel color. For example, 6309-729A has the red and blue "Pepsi" bezel.


- 6309-7290 (Black Bezel Insert)
- 6309-7290 (Black Bezel Insert, Japan Model)
- 6309-729A (Red/Blue Bezel Insert, International)
- 6309-729A (Red/Blue Bezel Insert, Japan Model)

Also addressed in detail in this article from our archive: ;)

HOW TO BUY A SEIKO 6309 DIVER - A Collector's Buying Guide
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