MARK I (1960).
Applied logo,”gladio” or “paddle”minute and hour hands,four leaf clover on back case.High quality copper color Valjoux 72 first class finissage.No logo diver crown.Gladio-shaped little hands on subdials.
Please note:during the very early production,two different sets of hour and minutes hands were fitted.”gladio”(left)and classic paddle (right).
MARK I/B (1961)
Same as mark I,but new subdials hands.
Remarkable the absence of the word “tachymetre”on scale.
MARK II
Little Saturn applied logo,same well refined movement like mark I,but new screw back with an oyster and writing ”sea pearl”.
MARK III
New caseback(Seapearl 300 and not only”Seapearl” like previous marks)new details,yellow standard finissage movement.
MARK IV
New dial,new hour and minute hands.Standard movement.Please note on the web many differences regarding colored chronograph hand,very often orange,and many little variations(lollipop hand for example).
the final version 11-68
boldwatches@hotmail.com
Bold Watches 
Hello ;
I have an unusual early Mark 3 Sherpa Graph that I purchased from
the original owner who owned it from new in 1966. It has original box and operating instructions in English.
It pre dates the ‘ lollipop’ seconds hand with the same hand as earlier versions but with a red tip. The instruction booklet shows that this is correct and the owner insists that he has never changed it. I have never seen a ‘ Mark 3 ‘ like this.
Please advise if you would like pictures.
Richard
"Mi piace""Mi piace"
Welcome,we are waiting for your pictures.Best
"Mi piace""Mi piace"
Hello ;
Did you receive the pictures that I sent ?
Richard
"Mi piace""Mi piace"
No,Richard..sorry.Please try again.
"Mi piace""Mi piace"