The Rolex Calibre 300 was used in the following watches from 1990-2000:
(1) Submariner No-Date Ref. 14060
(2) Explorer 1 No-Date Ref. 14270
We know that the Submariner No-Date does not have the words Superlative Chronometer Officially Certified (COSC) on its dial.
Take a look at the Explorer 1 No-Date...
The Explorer 1 is COSC Certified, with the words Superlative Chronometer Officially Certified printed.
Since both watches uses similar movement (Cal. 3000), does this equate to the Submariner No-Date (with Cal. 3000) as also COSC Certified, except that Rolex did not send this particular model (Submariner No-Date) for COSC Certification...but the Explorer 1 was sent for COSC...?
Can we conclude that the Submariner No-Date (Ref. 14060 with Cal. 3000) is also COSC except that the words COSC is not printed on its dial?
Rolex lao jiaos, gurus and experts, any comments or conclusions...???
(1) Submariner No-Date Ref. 14060
(2) Explorer 1 No-Date Ref. 14270
We know that the Submariner No-Date does not have the words Superlative Chronometer Officially Certified (COSC) on its dial.
Take a look at the Explorer 1 No-Date...
The Explorer 1 is COSC Certified, with the words Superlative Chronometer Officially Certified printed.
Since both watches uses similar movement (Cal. 3000), does this equate to the Submariner No-Date (with Cal. 3000) as also COSC Certified, except that Rolex did not send this particular model (Submariner No-Date) for COSC Certification...but the Explorer 1 was sent for COSC...?
Can we conclude that the Submariner No-Date (Ref. 14060 with Cal. 3000) is also COSC except that the words COSC is not printed on its dial?
Rolex lao jiaos, gurus and experts, any comments or conclusions...???
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