Watchface uses divergent series numbers 1, 2, 4, 8, 16 and 32 to display the hour, minute, month and day. Numbers start from the bottom row with 1 and are added together vertically by column to achieve the actual value.
Column #1: Hour
Column #2: Minute
Column #3: Month
Column #4: Day
Watchface refreshes on the minute, not the second, to reduce power consumption and future updates may follow to reduce the computations during each refresh.
Build 1139802: Updated for Pebble 2.0