SERVICE & WINDER LOG
WatchLog
Service log for serious collectors
Every watch gets a record: reference and serial, what was done to it and by whom, what it cost, how it is running now, and which winder slot it is sitting in. Nothing pairs, nothing syncs, and the whole collection prints as a PDF.
14 days of Pro on install.
$1.99/mo · $9.99/yr · $19.99
lifetime. Android.
THE DUE ENGINE
A full service and a pressure test are not on the same schedule, so WatchLog counts them separately from the last time each one was actually done.
FULL SERVICE
5.0 years
The starting interval, and yours to change per watch. A vintage 6309 and a modern chronograph do not want the same number.
PRESSURE TEST
1.0 year
Its own clock, because the gaskets go long before the movement does, and a diver that never gets wet still ages.
THE HEADS-UP
30 days ahead
Turn notifications on and each watch tells you before it is due, in time to actually book something. The collection screen carries the same thing as a pill on every card: due in twelve months, next service two years seven months, or log the first one.
Service intervals are user-set targets, not manufacturer-mandated. WatchLog reduces, but does not remove, the work of tracking maintenance. — shown in the app, on the service log
Two fields are required, brand and model. Everything below is there when you want it and empty when you do not.
Identity
Specification
Standing and money
Every visit, by type
Each one carries a date, who did it, what it cost in whichever currency you paid in, your notes and photos. The Service tab pools them across the whole collection, newest first, so the running spend on a watch is one scroll rather than a hunt through receipts. There is a wear stamp too, a plain record of what you put on today, with no feed and nothing to post to.
ACCURACY
Log a reading as seconds gained or lost per day, plus or minus, whenever you check against a reference. WatchLog plots them oldest to newest and keeps a rolling average of the last seven, which is the figure that tells you whether a watch has settled after a service or is drifting away from where it was.
It matters most in the weeks after a regulation, when one reading means very little and seven mean quite a lot. Add a note to a reading if the watch spent that week off the wrist, or on the winder, or in a drawer crown-up.
Accuracy readings are user-entered observations. For regulation, consult a qualified watchmaker. — shown in the app, under the chart
Name a winder, say how many slots it has, and put watches in them. Each slot holds its own direction and turns per day, because the Speedmaster and the Khaki Field do not want the same setting, and the winder's own manual is not going to remember which is which.
Because every mounting is stored with a start and an end, the winder list shows what is in it now, and the history shows what was in it before.
One watch, one document: the reference and movement details, then every service in date order with provider and cost, and the accuracy record. Pages are numbered and the cover carries a note that this is a personal maintenance record, not a manufacturer certificate, insurance appraisal or proof of authenticity.
ZIP
A single .zip with a JSON manifest of every watch, service, reading, winder and assignment, and a folder of the actual photo files. Share it straight to Drive, Dropbox or email from the phone. Restoring from one replaces what is on the device, which is deliberate and worth knowing before you tap it.
CURRENCY
A purchase price, a current estimate and every service cost each carry their own currency code, from a list of ten. A watch bought in Swiss francs and serviced in pounds stays that way rather than being flattened into one number.
Scroll sideways, or focus the row and use the arrow keys.
Fourteen days of Pro on install, no card. After that the free tier keeps three watches and one winder with ads, and Pro lifts both limits, removes the ads and unlocks the full service-history report.
MONTHLY
$1.99/mo
Cancel in Google Play whenever.
YEARLY
$9.99/yr
Less than a strap.
No. Nothing pairs and nothing syncs. You type in what you know, and WatchLog keeps it, does the date arithmetic and hands it back when you need it.
You set it, per watch. It starts at five years for a full service and one year for a pressure test, and you change either. The app is clear that these are targets you chose, not manufacturer instructions.
Log a reading as seconds gained or lost per day. WatchLog plots every reading and shows a rolling average of the last seven, so a watch settling in after a service is visible as a trend.
Yes. Export a .zip holding a JSON manifest of every watch, service, reading, winder and assignment, plus every photo, and share it to Drive, Dropbox or email. Restoring replaces what is on the device, so keep the file.
Three watches and one winder, with ads. Every install opens with fourteen days of Pro, no card, so you can put the whole collection in before deciding.
No sign-up and no email address. Watches, services, readings and photos are stored on the phone.
Brand, model, and the date of its last service. That is enough for the app to start counting.