ISO 3764:2016 pdf free

ISO 3764:2016 pdf free.Timekeeping instruments一Movements一Types,dimensions and nomenclature
This International Standard specifies the types and fitting dimensions of mechanical and electromechanical watch-movements.
This International Standard is applicable to the five following types of movements:
一Type 1: round;
一Type 2: shaped round;
一Type 3: round with double cutting;
一Type4:5 1/2″;
一Type5:6 3/4×8″.
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 286-1, Geometrical product specifications (GPS)一ISO code system for tolerances on linear sizes一Part 1: Basis of tolerances, deviations and fits
ISO 6426-2, Horological vocabulary一Part 2: Technical and commercial definitions
For the purposes of this document, the terms and definitions given in ISO 286-1 and ISO 6426-2, and the following apply.
diameter of a plate, or an equivalent part or an assembly unit, by which the movement is located in the watch-case
largest diameter of the movement, on the flange of the plate, of an equivalent part or of an assembly unit thickness embracing all the movement parts, including the distance between the dial support surface and the greatest protruding part of the movement
thickness embracing all the movement parts, including the distance between the dial support surface and the greatest protruding part of the movement
greatest distance between the dial support surface and the most protruding surface of the battery
Note 1 to entry: If the battery is not the most protruding part, the total movement thickness is determined as 1.
greatest distance between the dial support surface and the most protruding surface of the clamp
Note 1 to entry: If the battery with its clamp is not the most protruding part, the total movement thickness is determined as l1.
Note 2 to entry: For watches with analogue display, the total thickness of the movement does not include the projection of the hand-fastening elements nor the elements providing electrical contact with the case.ISO 3764 pdf free.