Rolex Sea-Dweller 16600 Dial Marks Guide
Reference Guide

Rolex Sea-Dweller 16600 Dial Marks Guide

By gensiulia · Nov 18, 2012 · 12 replies
gensiulia
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Gensiulia, in collaboration with Pierre ESE 2A, presents a detailed analysis of the dial variations found on the Rolex Sea-Dweller reference 16600. This work provides crucial insights into the subtle yet significant changes in dial markings, luminescence, and hands throughout the production run of this robust dive watch, offering valuable information for collectors and enthusiasts.

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Hi all!
I would like to share with you a little work done with my friend Pierre ESE 2A, concerning the dial marks of rolex 16600.
Start by saying that the first type of dial is very very similar to the last WG surround dial for 16660, although Beyeler made it, while on the 16600 is manufactured by Rolex itself.
Is also plausible that the service tritium dial for 16660 is the first MK for 16600.
The 16600 replaces the triple 6 at the end of the “numeric” serial case, so we can say that the 16600 comes with R serial.
This is the first series of dial for 16600, we can call it MK1
MK1 (case from R to late U-A)


We can find this dial until the A serial, when the tritium is replaced by Luminova. So we have the same dial but labeled differently at 6, SWISS instead of Swiss - T<25. With the advent of the new luminescence also change the hands, as you can easily see in the picture.
MK2 (case A)


This particular dial is short-lived and will be replaced after just over one year. His successor, MK3, is a Superluminova dial, so the luminescent substance changes again and we can see the new writing at 6 SWISS MADE…
MK3 (case from P to the end of production)


 …overlapped, for my personal experience, with this other type of dial, that we can call MK4. 
MK4 (case from K to the end of production)


we can see clear differences on the coronet, on the depth and the rest of the font in general. I talk about overlapping because we can surely find this dial (MK4) random on K, Z, M cases.
Then there is another dial, with the same characteristics of the MK4 (short FT) but solo SWISS at 6 o'clock (you can note also the absence of 29 and 31 indices), there is no certainty yet, but we think this is a service dial for the MK2.
Service dial

We should also talk about special dial for delivered/assigned/commemorative 16600 SD, as the “Polipetto” for Italian Police Sommozzatori, showed recently by eparisini, and of course, about 16600 Comex, but for the moment, we stop here.
Thanks to my pal ESE 2A
Thank you too for the attention.

chris
This message has been edited by DrStrong on 2012-11-19 06:38:18 This message has been edited by amanico on 2012-11-24 13:35:50

About the Rolex Rolex Submariner Date Ref. 1680

The Rolex Submariner reference 1680 is notable as the first Submariner model to feature a date complication, marking a significant evolution for the line. Introduced in the late 1960s, it bridged the gap between the earlier no-date Submariners and later iterations, offering enhanced functionality while retaining the robust characteristics of the professional tool watch. This reference is distinguished by its single cyclops date magnifier on the crystal, a feature that would become a hallmark of many subsequent Rolex models.

This reference typically features a 40mm steel case, housing the self-winding Caliber 1575 movement. The movement provides a power reserve of approximately 48 hours. The crystal is acrylic, commonly referred to as Plexiglas, contributing to its vintage aesthetic. Water resistance for the 1680 is rated at 200 meters, consistent with its design as a reliable underwater instrument.

For collectors, the reference 1680 is highly sought after, particularly early examples with "Red Submariner" dials where the word "Submariner" is printed in red. These variants represent a distinct period in Rolex's production history and are prized for their rarity and aesthetic appeal. The 1680 appeals to those who appreciate the blend of historical significance, functional design, and the tangible qualities of vintage Rolex manufacturing.

Specifications

Caliber
Cal.1575
Case
steel
Diameter
40mm
Dial
black
Water Resist.
200m
Crystal
Acrylic (Plexiglas)

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ES
ESE 2A
Nov 18, 2012
It was a pleasure to work with you, as usual.Ciaoooo;)

AM
amanico
Nov 18, 2012
Same study could also be done about the 16700 / 710, I think.

If I am not wrong, this is not reserved to the SD. Interesting observations on the evolution of the Rolex production. Thanks! Best, Nicolas.

GE
gensiulia
Nov 18, 2012
si, right!

in fact we can find similarities especially in the 16710 when we meet the II sticks and II roman... almost random on D, Z, M (M with cal. 3186 also). ciao!

AM
amanico
Nov 18, 2012
Certo. Do you work on it? ;)

GE
gensiulia
Nov 18, 2012
eheh no actually!

but in my first steps in Rolex world i owned and studied all this modern references.

AM
amanico
Nov 18, 2012
You should post somethng on that matter, then! ;)

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