Since latest firmware update, Pinetime battery life is outstanding.
I use it daily, mostly connected to GadgetBridge to get messages (my phone vibrations are not very strong. I also use it at night to walk in my house without turning lights on.
Notice that Wake Up is not set at all, no wake up. This also keep your display off while walking/moving.
I have a bit less baterry life than you because i have shake to wake enable and since there is no auto switch to sleep mode it wakes a bit during sleep, not ideal but it still manage 2weeks of baterry life easy!