Pocket Watch

Portable timekeeping devices made possible by the invention of the mainspring and advancements in clockwork miniaturization, transitioning timekeeping from a public to a personal utility.

Core metadata

ID: pocket_watch
Era: Renaissance
First known date: 1500 (decade)
Region: Nuremberg and Blois / early European portable watchmaking
Review status: source_checked
Maturity: N/A

Prerequisites

Dependents

None.

Fields

None.

Node sources

Watch (Encyclopaedia Britannica, 2026, textbook) • Supports: node

Prerequisite edge evidence

Edge/source evidence summary:

Prerequisite edges: 4
Average edge confidence: 68%
Prerequisite sources: 3
expert_inference: 4

Prerequisite	Type	Confidence	Evidence level	Note	Sources
Mechanical Clocks (mechanical_clocks)	enabling	68%	expert_inference	Mechanical Clocks provides a capability that enables this technology without being the only possible path.	Escapement (Encyclopaedia Britannica, 2026, textbook) • Supports: edge
Advanced Metallurgy (Medieval) (advanced_metallurgy_medieval)	enabling	68%	expert_inference	Advanced Metallurgy (Medieval) provides a capability that enables this technology without being the only possible path.	No sources recorded.
Glassmaking (glassmaking)	enabling	68%	expert_inference	Glassmaking provides a capability that enables this technology without being the only possible path.	Glass of the Ancient Mediterranean (McClung Museum of Natural History and Culture, 2013, museum) • Supports: edge
Bronze Working (bronze_working)	enabling	68%	expert_inference	Bronze Working provides a capability that enables this technology without being the only possible path.	Materials (NIST, 2026, generic_overview) • Supports: edge

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