Showing posts with label BGF. Show all posts
Showing posts with label BGF. Show all posts

Monday, 4 November 2019

TIM Lever 7 Jewels Shock Protected Stopwatch. Part 3


TIM Lever 7 Jewels Shock Protected Stopwatch. Part 3

Only a short time in the workshop today working on the TIM Lever 7 Jewels Shock Protected Stopwatch.

All parts cleaned, ready to assemble.
All parts cleaned, ready to assemble.
All parts cleaned, ready to assemble.
First I refitted and then polished the crystal with the bezel.
polished the crystal
Polished the crystal 
Started the assembly of the BFG Calibre 410 movement.

Grease and fit the Pillar Wheel with the Left-Handed thread screw, then replace the Pillar Wheel jumper and spring.
Pillar Wheel jumper and spring.
Pillar Wheel jumper and spring.
Turn the movement mainplate and refit the Yoke. Then refit the Stem Cock, then I have to file a cut out in one of my plastic movement holders so movement lies flat in the holder.
Refit the Yoke. Then refit the Stem Cock
Refit the Yoke. Then refit the Stem Cock
Grease and refit the Stem, Winding Pinion and Clutch wheel.
Refit the Stem, Winding Pinion and Clutch wheel.
Refit the Stem, Winding Pinion and Clutch wheel.
Grease and refit the operating lever and the fly-back lever.
Refit the operating lever and the fly-back lever.
Refit the operating lever and the fly-back lever.
Grease and refit the blocking lever for the second's wheel.
Refit the blocking lever for the second's wheel.
Refit the blocking lever for the second's wheel.
Remove and clean the lower Antishock jewel, then replaced the cleaned lower Antichoc jewel.
Removed, cleaned and replaced the lower Antishock jewel
Removed, cleaned and replaced the lower Antishock jewel



Friday, 1 November 2019

TIM LEVER 7 Jewels Shock Protected Stopwatch.Part 2


Session two today in my workshop with the TIM LEVER 7 Jewels Shock Protected Stopwatch.


Today I have removed the Seconds Hand from the Long Tube Heart. I needed to remove the second hand because I am hoping the NOS Breitling 45mm Dial I have purchased fits this watch.

Removed the tight fit Seconds Hand by slipping the Heart into the “vee” on the block to give maximum support to dial, and using flat head No:290 Bergeon Stake and Dial protector and two light taps with a hammer, hey presto off and no damage!


Stripped the Barrel down, and the mainspring and barrel really clean for a 1970s watch. 

Also found a crown that I may use for The Fly-Back pusher, but may make one when I have the lathe set up to make the broken pusher.
So all set to clean all the parts.   

Thursday, 31 October 2019

TIM LEVER 7 Jewels Shock Protected Stopwatch

An interesting time in the workshop today, as I started working on my first Stop Watch. This one is a Swiss Made TIM LEVER 7 Jewels Shock Protected, and the movement is a (BFG) BAUMGARTNER FRERES S. A. GRENCHEN (Suisse), Calibre 410. This calibre is used by Breitling on some of their stopwatches, so movement is of good quality. Rear case markings are Antimagnetic – Self Compensating - Shock Protected.

Click here to view photo album - opens new window

First I had to remove the front bezel to get to the movement as the back of the case is made part of the case. (Crystal needs refitting into Bezel).
Next, remove hands, small minute hand removed normally, but the second would not budge, so removed the dial (2 Screws). The dial easily came away, and looking under the dial the Second hand is fitted to a heart-shaped cam, so left that alone for the time being. Will leave the cam in cleaning jar, while the dial not touching the fluid.
 Next, I removed the fly-back lever, so I could remove the broken fly-back pusher. Don’t think I’ll get a replacement for this, so will have to make one on Boley 6.5mm Watchmakers lathe later.
The movement came free from the case with just a plastic stem bridge part holding the movement in.


So taking photographs I go, I completely deconstruct the rest of the movement.


Found the parts sheet online for the movement, so put part numbers in the picture info section.

So just need to release the Second hand from the dial, and strip down the barrel before cleaning the parts.