Orient 47848 and 48743 barrel, INTERESTING

[steve1811uk]

Hi, I thought I would share as I could not find this information posted anywhere. I am cleaning and lubricating the barrel of an Orient 48748 movement so I decided to take some dimensions. Interestingly the barrel and arbor are identical in every way to that of a Seiko 7005. Mainspring measures 0.95 x 0.124 x 380 (bridle 0.19mm thick) equivalent GR spring should be GR2379X

Lubrication inside the barrel seemed to be semi dry carbon particles. Maybe the oily part dried up and left the carbon, not sure.

Hope it helps.

[jdm]

22 hours ago, steve1811uk said:

Lubrication inside the barrel seemed to be semi dry carbon particles. Maybe the oily part dried up and left the carbon, not sure.

More likely graphite loaded grease like Moebius 8207, 8301, 8302, Seiko S4, may be others. 

[jerryvs]

an 7005 barrel is the same 

and pallet fork and balance 

[steve1811uk]

1 hour ago, jerryvs said:

an 7005 barrel is the same 

and pallet fork and balance 

The barrel is the same as 7005, not sure about the pallet fork and balance. The balance looks different as it has three spokes. If I get chance I will compare.

[jerryvs]

diferent is on the 7009 and 7s26 

i see this mistake a lot of times 

example 7s26 A/B is same on the balance 7s26 C is diferent 

[jdm]

2 hours ago, jerryvs said:

Example 7s26 A/B is same on the balance 7s26 C is diferent 

As I have often mentioned. One can refer to the sheet that I maintain to see what are the differences between 7S26 revisions, all parts are covered.

https://docs.google.com/spreadsheets/d/e/2PACX-1vRN2UULQKTfKmhRStZhDdIOIQrqd6sPB-g6x2SKyQQjOvTBjG_7TQXQhAT4f1WqAX5QAPkIimi-3jqd/pubhtml