The Ref. 6152 Panerai watch with caseback engraving is the 14th watch in our book “Vintage Panerai - The References” (chapter II), published in 2009.

Features of the watch:
Reference: 6152
Dial: “Radiomir Panerai” (sandwich, engraved)
Case number: 956636
Movement: Rolex Cal. 618 / Type 2

Small – but interesting – differences can be found in the Rolex Cal. 618 / Type 2 movements used in vintage Ref. 6152 Panerai watches: the bridges received different engravings, being technically the same (15 Rubis, no incabloc shock protection). Note the different position of ROLEX and 15 RUBIS!

For a better understanding, the differences are colored:
Rolex Cal. 618 / Type 2 = pink
Rolex Cal. 618 / Type 2 mod. = yellow.

Such differences in engraving the bridges are similar to the Rolex Cal. 618 / Type 1 and Type 1 mod. movements, which were used in Ref. 3646 Panerai watches. We have published these differences in our 2nd book “Vintage Panerai – The References”, in the chronological classification (page 12-29), and also illustrated in chapter I.VII (page 149).

Referring to our earlier posting about the different Rolex movements in vintage Panerai watches, the characteristic features of the Type 2 movement (used in Ref. 6152 watches) are:

15 Rubis, no Incabloc shock protection
(balance cock engraved with a “plus-minus scale”)
16 Lines, power reserve approx. 36 hours.
18.000 half-oscillations per hour.

As just recently another rare Ref. 6152 watch surfaced, we know that there exist different engravings on the bridges. In the graphic here you can see the first discovered version with “ROLEX” and “15 RUBIS” engraved on the center bridge (see chapter II, page 180 in our book “Vintage Panerai – The References”). The other today known engraving version is shown here (Beside the differences in the engravings, the characteristic features of both movements are the same).

You can read and see more about the different versions of Rolex Cal. 618 movements in Panerai watches in our 2nd book “Vintage Panerai – The References”.

Our collector friend Hagen contacted us with his latest entry in his collection: A stunning Ref. 6152 watch!

Not that the Ref. 6152 is one of the rarest references Panerai ever produced – the case number of the watch is a real sensation: 958713! It opens another, yet undiscovered number group in our database. Until today we had a number group with 6 known watches between 956632 and 956643. We hope to find other Ref. 6152 watches in the future, which have a number close to Hagen’s 958713, so that we can estimate the 2nd number group’s size.

Interesting to see the movement: not a surprise to us, it comes with a Rolex Cal. 618 / Type 2 movement, similar to the other 6152 watches we have in our database: 15 Rubis without Incabloc shock protection. The area around the crown shows the “gap” which is typical for the 6152 case.

The unpolished case confirms the fact, that also the Ref. 6152 watches have the reference and case number between the lugs. Until april 2009 this was not discovered! I had the chance to take a very close look at the Ref. 6152 watch number 956636 in summer 2010 and to my surprise I found these markings which we did not see before… we knew this watch already for years but nobody noticed it, as the watch was polished, which took away the appearance of these markings.

The reference number “6152″ is placed between the lugs at 12′o’clock and the case number “958713″ is placed between the lugs at 6′o’clock, both stamped under the case’s slope. The “double pencil” hands with “sharp pins” hold the original luminous material above a “Radiomir Panerai” dial with a wonderful patina.

What a great find!

Everytime we get the chance to take a close look at a rare Ref. 6152 Panerai, we can’t resist to make a very close observation of its case profile, which is – compared to Ref. 6152/1 case profile – very different. During the X Club Panerai Meeting in Viareggio there was another chance to take a close look at a collector’s stunning Ref. 6152 watch (see illustration on the left).

Both references were delivered with 8 mm Rolex crowns, but the main feature of the better known (and more produced) Ref. 6152/1 is the Panerai crown protecting device. For many collectors it is difficult to understand the difference between a Ref. 6152 and a Ref. 6152/1 if they only see photos of both references.

If you ever have the chance to hold a Ref. 6152 Panerai watch in your hand: you must see and feel the small hollow and the slope (pink colored in the illustration) on the side of the case. If you compare it with the rounded case profile of a 6152/1, the difference is very clear and easy to spot.

You can read more about the Ref. 6152 Panerai in chapter II of our 2nd book “Vintage Panerai – The References” with detailled dimensions and supporting photos, comparing all three 615X references and their differences.

The references produced in the 1950’s and 1960’s show clearly differences in caseback markings. Beside the different shapes of center cases and lugs between 6152, 6154 and 6152/1, different Rolex markings are visible when caseback removed.

The illustration shows the following caseback versions:
Ref. 6152 Rolex (with case number)
Ref. 6154 Montres Rolex S.A. (with case number)
Ref. 6152/1 Montres Rolex S.A. (without case number)

You can read and see more about the different versions of Ref. 615X watches in our 2nd book “Vintage Panerai – The References”.

For many years I have been an avid vintage watch collector. I love places and things that are from other times; the sense of history and the look of something aged have always struck a chord in me. One day I came across the Panerai collectors’ website. From there I began to learn more and become even further fascinated with these incredible watches and their long history.

My first acquisition was the PAM 21 and from there on, the passion and the interest grew. Attending the “Gatherings” with fellow enthusiasts brought me into contact with vintage Panerai pieces and ultimately, the 6152. When the chance came to acquire a very special and rare 6152 with a bluish tinted dial and Rolex movement I didn’t hesitate.

The search for a piece is one of the special joys in my life and it gives me incredible delight to indulge my passion. A relationship with Panerai watches encompasses it all; history, art and design aesthetics, passion and friendships.