The principles of waterproofing watches : official standards, understanding waterproofing, how to repair and adjust waterproof watches /

Fried, Henry B., 1907-1996,

The principles of waterproofing watches : official standards, understanding waterproofing, how to repair and adjust waterproof watches / by Henry B. Fried. - 68 pages : illustrations ; 23 cm

62014817


Clocks and watches--Repairing.
Waterproofing.

Repair USA Waterproof Practical how-to Watch (general)