ISO 10552-2014 PDF

Full title and description

ISO 10552:2014 — Timekeeping instruments — Crowns and sealed tubes — Designs and dimensions. Specifies standardised designs, dimensional specifications and tolerances for crowns and sealed tubes used in wristwatch cases; applicable to mechanical, electromechanical and electronic wristwatches of water‑resistant design.

Abstract

ISO 10552:2014 defines the designs and dimensions of crowns and sealed tubes and their tolerances to ensure interchangeability, correct sealing and fit for water‑resistant wristwatch constructions. The publication is applicable to crowns and sealed tubes of mechanical, electromechanical and electronic wristwatches.

General information

• Status: Published (confirmed as current by ISO review process).
• Publication date: 2014-10 (October 2014).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 39.040.01 (Horology — watches).
• Edition / version: Edition 3 (2014).
• Number of pages: 10 pages.

Scope

Specifies standard designs, nominal dimensions and permissible tolerances for crowns and sealed tubes used on water‑resistant wristwatches. The standard applies to crowns and sealed tubes for mechanical, electromechanical and electronic wristwatches and is intended to support consistent manufacturing, interchangeability and sealing performance in watch cases. It does not replace other horology standards covering whole‑watch tests (for example water‑resistance testing) but complements them by standardising the case component geometry.

Key topics and requirements

• Standardised crown and sealed‑tube geometries and dimensional series to support interchangeability and manufacturing.
• Tolerances for diameters, thread engagement, lengths and mating features required for reliable sealing and mechanical function.
• Applicability to mechanical, electromechanical and electronic wristwatch designs—emphasis on water‑resistant constructions.
• Reference to horology technical committee work (ISO/TC 114 subcommittees) for related component and watch system standards.
• Available formats: PDF + ePub and paper as published by ISO (standard sale formats).

Typical use and users

Primary users include watch manufacturers, case and component suppliers, watch designers and engineers, quality assurance and inspection laboratories, precision machining specialists, and repair/service centres. The standard is used during component design, tooling specification, procurement of crowns and sealed tubes, and assembly/inspection processes to ensure compatibility and water‑resistance performance in finished timepieces.

Related standards

Commonly referenced horology standards that complement ISO 10552 include ISO 22810 (Horology — Water‑resistant watches) for whole‑watch water‑resistance requirements, ISO 6425 (Horology — Divers' watches) for diving‑grade requirements, and ISO 3159 (Timekeeping instruments — Wrist‑chronometers) for chronometer definitions and testing; these standards address whole‑watch performance and testing while ISO 10552 addresses component dimensions and tolerances.

Keywords

crowns, sealed tubes, watch crowns, watch tubes, horology, dimensional tolerances, water‑resistant watches, watch components, ISO 10552, watch case interfaces.

FAQ

Q: What is this standard?

A: ISO 10552:2014 is an international standard that specifies designs, nominal dimensions and tolerances for crowns and sealed tubes used on wristwatches, with the aim of ensuring compatibility and sealing performance in water‑resistant watch designs.

Q: What does it cover?

A: It covers the geometries, nominal sizes and permissible tolerances for crowns and sealed tubes for mechanical, electromechanical and electronic wristwatches; it focuses on component dimensions rather than whole‑watch test methods.

Q: Who typically uses it?

A: Watch manufacturers, case and crown suppliers, design engineers, precision machinists, QA/inspection labs and repair/service centres use this standard when specifying, producing or verifying crown and tube components.

Q: Is it current or superseded?

A: The 2014 edition (Edition 3, published October 2014) is published and was confirmed in ISO’s review process; it is current as indicated by ISO’s status.

Q: Is it part of a series?

A: ISO 10552 is part of the body of horology standards developed under ISO/TC 114 (Horology) and complements other horology standards (for example ISO 22810 for water‑resistance and ISO 6425 for diver’s watches), but it is not a numeric sub‑part of a single multi‑part series—rather it is a standalone component‑level standard within the horology portfolio.

Q: What are the key keywords?

A: Crowns; sealed tubes; watch case components; dimensions; tolerances; water‑resistant watches; horology; ISO 10552.