Name: K.I.S.S. Analog HR
Rating: 4 (178 reviews)
Author: Grrrippp

The goal for the K.I.S.S analog watch face is to present interesting data in a clear and elegant way, while avoiding a cluttered and busy interface.
It provides 1Hz updates for newer devices, such as the Fenix 5/S/X, Forerunner and Vivoactive watches.
On those devices, it displays the heart rate in real-time. At least on the full 1.9.196: :-)  
2.95€ https://www.paypal.com/donate?hosted_button_id=E2TT8J9UQSR9G - Please mention Email if it deviates from your PayPal account if any. 
The cpu usage of this watch face has been optimised to minimise the impact on the battery life. It has been tested for an usage of 0,25 - 0,33% per hour on Fenix 5.

These features are available:
-5 fully configurable fields
-always-on seconds
-real-time HR
-progress bars for step count and heart rate, based on zone
-activity info and notifications
-next sunset / sunrise event
-display of the week number 
-configurable options
-display of speed, power, training effect
-24h Analog Clock mode

The full version can be evaluated for one minute after being shown and after this time, it reverts to the free version.
In the free version of this watch face the following can be configured:
-Notification and status icons
-Foreground colour
-Theme colour
-Marker configuration (major, minute)
-Battery info
-Date configuration

Upon installation, the watch face runs in full-mode for one hour, then it reverts to the free version without a valid unlock code.

Features of the free version:
-Configurable Background Colour
-Configurable Theme Colour
-Date on / off
-Minute Markers on / off
-Major Markers on / off
-Status and notification options on / off

NOTE:
To make sure the sunset / sunrise times are correct, it is required that the watch face is able to determine the correct location.
While it will eventually get this, the fastest way to achieve this is to start an activity with the GPS enabled. Then, switch back to the watch face (by pressing and holding the down button on Fenix series).

To get the full version, please donate 2.95€ using this link: 
https://www.paypal.com/donate?hosted_button_id=E2TT8J9UQSR9G
or
https://paypal.me/KISSAnalogHR and mention your email address!