Moon Calendar Watch provides quick and easy access to Moon Phases and times of Sunrise, Sunset, Moonrise and Moonset. 
The app determines your GPS location and calculates the precise Moon and Sun data at your location. 

Click Up / Down for Moon and Sun data of the next day.
Double click Down to play an animation of the Moon Phase Calendar to get a quick overview. 

This Pebble app can be used without connection to your phone. But you should run the phone app Moon Calendar Watch (Android or iPhone) once per week to update the Moon data on your watch.

Tide Table Chart provides quick and easy access to high and low tide forecasts.

Click Up / Down for high and low tides of the next day.
Double click Down to play an animation of moon phase and tide changes for a quick overview.

This Pebble app can be used without connection to your phone. But you should run the phone app Tide Table Chart (Android or iPhone) once per week to update the tide data on your watch.

DISCLAIMER - Tide data displayed by the app are based on astronomical tide predictions and do not take into account the effects of strong winds, rain, floods and other meteorological events. 
Do NOT use the app for navigation or any other purpose that may result in personal injury or property damage. Use it at your own risk.