Biofeedback watches

A watch comprising:

• a one-piece case having a bottom wall and an outer wall extending from a circumferential region of the bottom wall, the bottom wall forming an aperture;
• a dial secured to the case;
• a movement for tracking time, the movement having a first portion that resides beneath the dial and a second portion that protrudes through the dial;
• time-indicating members disposed above the dial, the time indicating members being secured to the second portion of the movement;
• and
• an insert disposed in the aperture formed by the bottom wall of the one-piece case, the insert having a first opening aligned with an optical sensor disposed within the case, a second opening aligned with an LED disposed within the case, and a wall that separates the first opening from the second opening.

A watch comprising:

• a dial;
• a movement for tracking time, the movement having a first portion that resides beneath the dial and a second portion that protrudes through the dial;
• time-indicating members disposed above the dial, the time indicating members being secured to the second portion of the movement;
• a display disposed beneath the dial;
• and
• a printed circuit board electrically connected to the display and the movement, the printed circuit board being configured to provide power to the display and the movement.