Mizuno Etched Hosel Numbers

PaulBoy

Well-Known Member
Joined
Nov 18, 2012
HCP
4.4 CONGU
Local club/country
Guildford GC & New Forest GC
Irons
JPX900 Tour 4-PW S300 AWT
Driver
Titleist TS2 PX Hzrdus Even Flow White 6.0
#1
As per my thread below, I recently purchased a set of JPX900 Tour irons - The set was 5-PW so I am on the lookout for a 4 iron - I spotted one for sale online, and noticed from the pictures that the number etched on the hosel was the usual date followed by the letter "S" - All the sets I have owned or seen have always had the letter "C" after the build date? - I did some digging online & found reference to this stating that the "C" relates to "Custom" and the "S" relates to "Stock"? - Is this correct? - I always thought the "C" related to "Cumbernauld" which is the factory in Scotland where Mizuno build all their clubs for the European market?
Thank you ... Paul
 

seanmor

Well-Known Member
Joined
Sep 6, 2012
Location
Kilmarnock, Scotland.
HCP
19
Local club/country
Caprington Golf Club Kilmarnock
Irons
JPX-900 HM 5-PW PX LZ Graphite A flex
Driver
ST180 HL/GT180 11.5deg TENSEI CK Series 50 A-Flex
#2
As per my thread below, I recently purchased a set of JPX900 Tour irons - The set was 5-PW so I am on the lookout for a 4 iron - I spotted one for sale online, and noticed from the pictures that the number etched on the hosel was the usual date followed by the letter "S" - All the sets I have owned or seen have always had the letter "C" after the build date? - I did some digging online & found reference to this stating that the "C" relates to "Custom" and the "S" relates to "Stock"? - Is this correct? - I always thought the "C" related to "Cumbernauld" which is the factory in Scotland where Mizuno build all their clubs for the European market?
Thank you ... Paul
Hi Paul,

I've always believe that was correct that the number tells you date when they were built and the letter C tells you that the set was Custom fitted, the S after the number tells you they are Stock and were bought of the rack and were built to STD specs loft, lie and length,

But like you I would be interested to know if that is actually correct..?

I'll also throw in a curved ball to this question as I've recently had my JPX900 Hot Metal irons re-shafted by Mizuno at Cumbernauld they were originally custom built on the 23rd October 2017 with KBS Tour C-Taper Lite shafts and the etched number on them was 231017-C which I assume stands for Custom fit,

But when I received them back having had them fitted with new Project X LZ graphite shaft on 22nd January 2019 they had a new etched number on them that was 220119-R which I assume the number represents the build date but what does the letter R represent...?

So I'm now wondering what the letter R at the end of the number means...?

Cheers John,
 
Last edited:

PaulBoy

Well-Known Member
Joined
Nov 18, 2012
HCP
4.4 CONGU
Local club/country
Guildford GC & New Forest GC
Irons
JPX900 Tour 4-PW S300 AWT
Driver
Titleist TS2 PX Hzrdus Even Flow White 6.0
#3
Hi John & thanks for your reply - I guess we will have to wait until MPX or another Mizuno Staff member reads this? - I would speculate that the "R" on your irons which had the shafts changed stands for "Re-shaft" or "Re-fit"? - It would be nice to hear that from the Running Bird's mouth so to speak ...
 
Likes: seanmor

Brattz

Well-Known Member
Joined
Nov 6, 2016
Location
Derby, Derbyshire
HCP
5.1 CONGU
Local club/country
Morley Hayes Resort, England www.morleyhayes.com
Irons
Mizuno JPX 919 Tour (4-PW) - Project X LZ 6.0 120g - 0.5° Flat - 1/2" Long
Driver
Titleist 917 D2 - Diamana S+ Blue 60S 10.5° - B1 - 12g Fade
#4
S = Standard
C = Custom Build
R = Replacement

That’s what I was told by a club Pro
 
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