Jack Mason Japanese Quartz

The Jack Mason Japanese Quartz is a non-in-house quartz movement manufactured by Miyota. It powers three-hand time-only models in the brand's lineup, including the Avigator. The brand does not disclose specific caliber numbers for this movement, which remains in current production. This generic Miyota quartz caliber provides reliable timekeeping for entry-level three-hand watches within the Jack Mason collection.