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Powermatic 80.111. What do you think about this caliber?

Powermatic 80 are calibers derived from the Eta 2824-2. By reducing the pace to 21600 A/h (and probably something else), Swatch engineers have got to improve the PR to an impressive 80h. The official name of the PM 80.111 is ETA It is used in several Tis
3d
By: aWtchslvr
20
Weems@8
727

Why does time flow forward?

As a watch enthusiast and a person who is deeply fascinated by science, I felt like this could be a good idea for a post (keep in mind that I am not an expert in any of the things I'm talking about). One of the reasons why I love watchmaking is the fact t
3M
By: andrea~
17
COUNT DE MONET
1,215

Perraux

I have a very small nice looking watch that I found during a clean up of my Aunt's home when she passed. I'm thinking it is an immitation of a GP watch since I cannot find any mention of a Perraux brand or manufacturer. Any information will be help as I'm
1M
By: chrisaminotti
2
cazalea
277

Watch Crystal Materials

At the request of a regular WPS reader, I did some research on the various materials used to create Watch Crystals or Watch Glasses (archaic term). A Watch Crystal covers the dial of the watch, functioning as a Windshield or Windscreen. Watch Crystals are
1M
By: cazalea
12
cazalea
551

Is anyone here a fan of the velcro/NATO type of strap?

I have two - both due to problems with OEM bracelets. The first is mounted to a Seiko perpetual diver that has proprietary bracelet lugs, and the half-rubber/half-titanium bracelet disintegrated. THE STORY IS HERE Thanks to the clever strap design, I was
2M
By: cazalea
10
smironov
738

Timegrapher

Does anyone have a timegrapher they recommend? I am not looking to spend top dollar but don’t want “junk” either. This will mostly be used for movements like Seiko and Miyota and possiblt ETA or Sellita eventually . Thanks!
5M
By: Ssherman855
7
kjkt3
746

Recommendation for aftermarket plastic tip to adjust pusher?

Sorry if I am not clear here. My friend is going to pick up a second hand annual / perpetual and the watch won't come with the adjuster tool for pressing the recessed pushers ( adjust the watch day / date etc. Of course he can use a tooth pick. I was wond
2M
By: vuillaume
14
wover
885

The effect of a direct hit on a watch crown?

Question to the experts: What should be the effect of a direct hit (when wearing) on the crown (beside the visual)? does it cause a damage in the movement? what if the watch has screw-in crown? as I understand, it should be locked in its place by the thre
4M
By: MilDiver
9
cazalea
1,028

Workshop Report – Making a Pinion by Hand

In this workshop report we will see all the steps to making a pinion by hand. This is how pinions are made for prototypes and small quantities without recourse to the automated machines for big quantities. Below we see the finished pinion, an 8 leaf pinio
8Y
By: DonCorson
16
Andy_Mac
13,137

I saved this for a rainy day

In this case, THIS being a box of watches with needs... mostly batteries, but also strap / bracelet issues. Here's my Hysek whose rubber strap broke TWICE. Replaced the first time at a cost of 325 SF + wire transfer. This time the fix had to be free or it
5M
By: cazalea
3
nasseriq
624