Seiko SCVK001 – The start of the Seiko 4S family…

I read Seiya’s post  last year and obtained confirmation that the 4S35 was the very first 4S movement to be produced, before it became detuned to the 4S15 base caliber. Why detuned one might ask? Simply because the 4S35 is factory …

Seiko Prospex Zimbe MM300 SLA013J1

From my last entry,where I shared a Thailand only turtle,I just spotted another advertisement, this time for what seems to be a Zimbe variant of the MM300! The print ad is not sharp enough to determine the movement number but …