Gold Filled. Rare. Ticking sluggishly despite a broken balance staff. Movement marked, "ZENITH Superior - 16443858 - 21 Jewels Adjusted 5 positions - Safety Pinion - Jeweled Barrel. Weight: 123.60g gross. 18 Size (53.24mm case diameter). Offered without reserve. Est. $200-300. Note: All watches were functioning at time of cataloguing unless noted otherwise. They have not been tested for accuracy. CODE-POC