iPhone Screenshots


This model of a complex mechanical watch contains many of the most complex "complications" found in real watches, plus refinements found nowhere else. The displays maintain the look and feel of a real mechanical watch, but with considerably more complexity than possible in real mechanicals and with the time and location accuracy of a modern computer.

Free for a limited time! Geneva is just one of 14 watches included in our other apps, Emerald Chronometer and Emerald Chronometer HD.

Astronomy features:
- Highly accurate data from 4000 BCE to 2800 CE
- Times of sunrise, sunset, moonrise, and moonset
- Superior moonphase indicator
- Relative positions of the Sun, Moon, and the constellations of the zodiac
- Solar time and sidereal time
- Eclipse predictor (lunar node indicators and separation indicator)
- User settable geographic location and timezone using an 80,000-city database

Clock features:
- Day/date/month/year indicators
- Day of the week, season and fully-general leap year indicators
- Local and UTC time
- 1/5 sec precision (18000 bph)
- Synchronized with standard atomic clocks via NTP

Play with it by tapping on the crown and moving the hands, or press and hold on a date window to zoom through time to see the effect on the heavens. Then just use it to show you when it's time for a break.

A complete description of each application feature can be found in the built-in Help screens and on the Emerald Sequoia LLC Web Site, which also includes a demo movie of Emerald Chronometer.

If you are having any trouble with the application whatsoever, please see our FAQ on the support page listed below and then contact us through that page if your problem is not resolved. We take pride in responding promptly to all support email requests.

(NTP time synchronization requires network access. Like all other iOS apps, Emerald Geneva cannot set the device's internal clock.)

What’s New

Version 3.9.8

- Fix UT minute hand on Geneva when local time has a TZ offset which is not an even hour multiple.

Ratings and Reviews

4.9 out of 5
16 Ratings

16 Ratings

MikeAngelo82 ,

Exceptional and Extraordinary !!!

I’ve never been impressed like that before, this app and the work put into it is simply extraordinary and exceptional, this app will certainly be my best app/friend companion from now on, thank you very much to the scientists and developers behind it!

ronniemilsapfan ,

My Dream Watch

I absolutely adore this timepiece. I’ve been looking for a watch/clock like this for a long time and this is definitely the one. If I could, I’d rate 100 stars 🤣 To all timekeepers and astronomers-THIS APP IS A MUST HAVE

Lynx369 ,

Nice and interesting app

This is a nice and interesting app, i just wish the developer would create a ‘face’ for the Apple Watch based on it.


Emerald Sequoia LLC
45.9 MB

Requires iOS 11.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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