TIM Lever 7 Jewels Shock Protected Stopwatch update.
The NOS Breitling Dial has arrived;
my modification on the watch is a NOS Breitling Dial. Breitling use this movement
in their stopwatches, so I feel this is a legitimate modification for my watch,
plus I like the look.
So
just have to decide what look I’ll give the missing Button on the broken fly-back
pusher which I will have to manufacture on the lathe.
Oiling and greasing as I go, I start by replacing mainspring
in barrel, Arbor and barrel cap. Then start on the train wheels, first replace
the centre (Seconds) wheel and pinion followed by the complete barrel, then the
third wheel and pinion, Minute recording wheel and pinion. It’s time to replace
the Barrel Bridge.
Now time to refit the Escape
wheel and pinion and then the Train Bridge. On to the click and spring, Ratchet
wheel, Crown wheel with left-hand thread screw, test the train by winding the
stem and putting power into the Mainspring, runs nice and freely.
Replace the Pallet Fork and
Pallet Cock, then fit the complete Balance and the movement springs into life.
Remove top Anti-Shock Jewel and clean and replace. Place movement on the timing
machine and the readings are fine, will regulate it later.
Turn over the mainplate and
replace the following items, operating lever spring, fly-back lever spring,
hammer, whip, whip spring, blocking lever and finally the dial rest plate. Test
the Start, Stop
And fly-back actions and all the
motions are working well.
That’s it for this session, as I
have to manufacture the complete fly-back pusher, and still waiting for the Breitling a replacement that I hope will fit movement!
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.
