THINGS WITH SPRINGS CH CHAT 12/18/22

hi everyone


Just a FYI . this is still a work in progress..... The Things With Springs Clubhouse room is meant for a Live watch forum experience with a small GTG. We are striving for a collector to collector conversations.. having collectors either email me photo of there watch ( or they can join the forum and reply to this thread ) so we can " chat" about in real time... Just to be clear we dont have to talk about a posted watch ... this is a free flowing room on topics on vintage watches and things around watch collecting ... And at the end of the GTG when everyone leaves the CH room... and the room no longer exist ... This thread will remain as a quasi record of the event and we can later go back and refer to.... Hear you at 4 pm EDT Sunday ....

THINGS WITH SPRINGS CH CHAT 12/18/22
Remember the Clubhouse room is only as good as the collectors that join in.... please post a watch, timepiece , clock etc you want to chat about.

join the room

https://www.clubhouse.com/join/thin...te&utm_campaign=ixuJCwEp72FD8BiqRZsvKg-506180


Be Safe

Good Hunting

Bill Sohne

Hello everyone


A Nawcc member posted on Omegaforums asking about his speedy 125 , I was shocked no one replied …
https://omegaforums.net/threads/speedmaster-125-caseback-code-research.68098/page-2#post-2087021
Anyone have any thoughts ?

bill

Hi

22 mm wide bracket

40 mm diameter watch

Hi
Seiko crystal Chronometer

A Zenith small marine chronometer

this is what I have

Here’s some pictures of a project Seiko QC951 II quartz chronometer. It might be more of a relic as it has a lot of what looks like sediment inside the case. But it gives you an idea of late 60’s/early 70’s quartz technology.
The innards - the top deck has the time display, battery level meter and seconds adjustment buttons.
A closeup of the mechanical time setting shaft
Side view of the oscillator module showing frequency adjustment capacitor
Closeup of the low frequency quartz crystal

Oscillator board and metal coated plastic cover.
The quartz crystal is inside the foam rubber blocks which are surprisingly in decent condition.

backup battery board that keeps the clock running while the main “D” cells are replaced. The upper board came out of a different clock. The lower board is still attached to the oscillator base by a screw that won’t come out and its batteries are missing. I don’t know what the battery technology is.
Backside of the top deck with the motor driver board.
display mechanism with the mechanical seconds adjustment mechanism.
Motor driver board

Mechanical time adjustment linkage

base showing oscillator, frequency divider, battery holder and wiring. Time setting linkage on the bottom

The battery tube has a micro switch attached that connects the backup batteries when the main batteries are removed.
The quartz crystal

SEE YA AT 4 PM TODAY FOR A XMASS DAY CHAT !