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2807 · 1 November 2017, 11:57 AM

How do you folks check the accuracy of the time keeping on your watches?

I asked this in another thread, but I thought I’d just start a new thread because it was off their topic.

Thanks.

Grandcrew · 1 November 2017, 12:15 PM

There is clock at the top of this forum. I set my watch to it at 8am then check where it's at the next morning at 8am.

Springfield · 1 November 2017, 12:28 PM

Time.gov

geebob · 1 November 2017, 12:42 PM

I use WatchTracker app.

I use this app for a period of a month, to keep track on how my watch behaves when it's worn or stored at night.

Using this app I learn that my Explorer usually gain about 1.5 seconds when it's worn for 10-12 hours and lost 0.9 second when stored crown up at night. Averages 0.5 spd.
My Speedy otoh, it gains between 7-9 seconds per day.

After a month of observation, I stop checking my watch's accuracy, and only sync my Speedy every Monday morning, it usually gains a minute a week, or when I travel crossing time zone.

BTW I also have Emerald Time app on my iPhone. Nice app and it's free.

tamiya · 1 November 2017, 12:51 PM

Quote:

Originally Posted by 2807

How do you folks check the accuracy of the time keeping on your watches?

I keep a bunch of Casio digital Quartz near where I usually do time setting.

Star Ferry · 1 November 2017, 12:53 PM

I compare with my quartz 9F seiko

cop414 · 1 November 2017, 12:53 PM

Another vote for WatchTracker.

bdex75 · 1 November 2017, 12:53 PM

Clock on Hodinkee app

Sent from my iPhone using Tapatalk

Tools · 1 November 2017, 01:10 PM

Quote:

Originally Posted by 2807

How do you folks check the accuracy of the time keeping on your watches?

I asked this in another thread, but I thought I’d just start a new thread because it was off their topic.

Thanks.

Use a reliable source like time.gov, not a computer clock or your cell phone. Set and check, check a week later and divide by the days to get an average daily variance.

GradyPhilpott · 2 November 2017, 03:24 AM

Quote:

Originally Posted by Tools

Use a reliable source like time.gov, not a computer clock or your cell phone. Set and check, check a week later and divide by the days to get an average daily variance.

HogwldFLTR · 1 November 2017, 01:14 PM

time.is works for me.

https://time.is/about

meganfox17 · 1 November 2017, 01:32 PM

Take a look at " ClockSync "
https://play.google.com/store/apps/d...amip.ClockSync

Blansky · 2 November 2017, 02:53 AM

If I'm late or early to the mailbox to pick up my welfare check.

Things have been pretty right on lately so I guess I'm within tolerances.

1 November 2017, 11:57 AM	#1
2807 "TRF" Member Join Date: Jan 2015 Location: California Posts: 315	How do you check the fast/slow running speed of your watch? How do you folks check the accuracy of the time keeping on your watches? I asked this in another thread, but I thought I’d just start a new thread because it was off their topic. Thanks.

1 November 2017, 12:53 PM	#7
cop414 TRF Moderator & 2024 SubLV41 Patron Join Date: Apr 2012 Real Name: Tim Location: Pennsylvania Watch: 14060M Posts: 72,249	Another vote for WatchTracker. __________________ Rolex Submariner 14060M Omega Seamaster 2254.50 DOXA Professional 1200T Card carrying member of TRF's Global Association of Retro-Grouch-Curmudgeons TRF's "After Dark" Bar & NightClub Patron P Club Member #17 2 FA ENABLED

1 November 2017, 01:14 PM	#11
HogwldFLTR 2024 ROLEX SUBMARINER 41 Pledge Member Join Date: Aug 2012 Real Name: Lee Location: 42.48.45N70.48.48 Watch: Too many to list! Posts: 33,697	time.is works for me. https://time.is/about __________________ Troglodyte in residence! https://www.rolexforums.com/showthread.php?t=808599

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1 November 2017, 12:15 PM	#2
Grandcrew Banned Join Date: Jul 2017 Location: In Da States! Posts: 129	There is clock at the top of this forum. I set my watch to it at 8am then check where it's at the next morning at 8am.

1 November 2017, 12:28 PM	#3
Springfield "TRF" Member Join Date: Dec 2015 Location: Springfield, IL Posts: 120	Time.gov

1 November 2017, 12:42 PM	#4
geebob "TRF" Member Join Date: Apr 2017 Location: Here Watch: SpeedyPro Explorer Posts: 235	I use WatchTracker app. I use this app for a period of a month, to keep track on how my watch behaves when it's worn or stored at night. Using this app I learn that my Explorer usually gain about 1.5 seconds when it's worn for 10-12 hours and lost 0.9 second when stored crown up at night. Averages 0.5 spd. My Speedy otoh, it gains between 7-9 seconds per day. After a month of observation, I stop checking my watch's accuracy, and only sync my Speedy every Monday morning, it usually gains a minute a week, or when I travel crossing time zone. BTW I also have Emerald Time app on my iPhone. Nice app and it's free.

1 November 2017, 12:53 PM	#6
Star Ferry Banned Join Date: Aug 2015 Location: down by the river Posts: 4,926	I compare with my quartz 9F seiko

1 November 2017, 12:53 PM	#8
bdex75 "TRF" Member Join Date: Jul 2011 Real Name: Brandon Location: Indianapolis Watch: my money vanish Posts: 8,506	Clock on Hodinkee app Sent from my iPhone using Tapatalk

1 November 2017, 01:32 PM	#12
meganfox17 Banned Join Date: Aug 2016 Location: Kuala Lumpur , Ma Posts: 2,011	Take a look at " ClockSync " https://play.google.com/store/apps/d...amip.ClockSync

2 November 2017, 02:53 AM	#13
Blansky 2024 Pledge Member Join Date: Feb 2013 Location: swmnpoolsmovie* Posts: 9,809	If I'm late or early to the mailbox to pick up my welfare check. Things have been pretty right on lately so I guess I'm within tolerances.

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