Скачать с ютуб Repair and restoration of a Seiko 6139 chronograph from 1974 в хорошем качестве

Repair and restoration of a Seiko 6139 chronograph from 1974

This video documents the restoration and repair of a Seiko 6139-8040 from November 1974. This is a warts-and-all account of a process whose conduct was severely hampered by its documentation. This restoration features a number of commonly-encountered faults that can afflict Seiko 6139 movements, the most conspicuous of which, a broken chronograph wheel discovered very late in the process. 0:00 Introduction 0:28 Checking it out 1:47 First look at the movement 3:36 Preliminary timegrapher measurement 3:50 Dismantling the movement begins 4:28 Uncasing the movement 5:10 Removing the sub-dial hand 5:29 Calendar parts 8:01 Chronograph bridge 8:32 Hammer and coupling lever springs 9:21 Coupling levers 10:12 Letting down the mainspring 10:35 Ratchet wheel and click spring 11:10 L-shaped plate 11:27 Pallet fork 11:50 Castle wheel 12:05 Barrel and train wheel bridge 12:30 Gear train 13:08 Cannon pinion 13:20 Centre wheel 13:51 Diafix removal 14:25 Setting parts 15:00 Mainspring 16:18 Cleaning 18:10 Reassembly 22:10 Spot the mistake 22:30 Reassembly continues 26:02 Refitting the springs 27:53 Correcting the mistake 31:26 Oiling the Diashock setting 32:13 Chronograph wheel finger in action 32:45 Dial side assembly 36:40 Fitting the dial and hands 39:18 Chronograph timing check 39:53 Slipping clutch and finding a new chronograph wheel 40:23 Fitting the new chronograph wheel 41:49 Fitting a new crystal and recasing the movement 44:00 The finished article