AHO 1057

AHO 1057 watch movement

AHO 1057 watch movements

AHO 1057

A true rarity is the AHO caliber 1057, one of the rare hand-winding movements from August Hohl in Pforzheim, Germany, who sold watches under the label “Constanta”. Even when these movements can compete with Swiss movements, not many of them are still available on the second hand market.

The 10 1/2 ligne movement (measured 10 1/4 lignes) impresses by its classical construction and most of all by its sandwich construction, which was required for the indirectly driven center second hand. The angled plates are visually very appealing.

The screw balance is secured in two Super-Shock-Resist protection systems; on the dial you find the classic yoke winding mechanism. Both are typical features of a “better” movement.

Technical data

Manufacturer AHO
Caliber 1057
Number of jewels 17
Escapement Anchor with pallets
Balance Nickel screw balance
Shock protection(s) Super Shock Resist
Balance cock direction clockwise
Hairspring stud fixed
Regulator type Long regulator arm
Movement construction Fork
Escapement wheel, Fourth wheel, Third wheel, Center second pinion
Center wheel, Mainspring barrel
Features SCI
Functions Hour, minute, second
Beats per hour 18000
Size 101/4”’
Image in Flume Werksucher  1958 g.10
Spares might be available for this movement.

Please contact us for availability.