Brand: U.S. Time / Timex
Model: B-21
Caliber: M21, manual wind
Year: 1949

The B-21 was available in several additional variations:

BR-21: 10k rolled gold case, black dial, Radiolite hands and numerals, natural pigskin strap.

BS-21: With sweeping seconds hand.

BSR-21: Radiolite with sweeping seconds hand.