BOMwiki the bill-of-materials encyclopedia 27,966,275 parts mapped · 127,489 items

Movement Assembly

Spring-driven movement built on a jewelled plate: a fusee equalises the mainspring torque, a spring-detent escapement frees the balance to swing almost unimpeded, and a compensation balance corrects for temperature. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.

Bill of materials

9 top-level lines · 19 rows shown · 22 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Plate & Pillar Set 2 parts marine-chronometer-plate-set 1 6 assembly
1.1 Gilt Plate marine-chronometer-plate 2 part
1.2 Movement Pillar marine-chronometer-pillar 4 part
2 Jewel Set marine-chronometer-jewel-set 1 part
3 Mainspring Barrel marine-chronometer-barrel 1 part
4 Coil Spring coil-spring 1 part
5 Fusee 2 parts marine-chronometer-fusee 1 2 assembly
5.1 Fusee Cone marine-chronometer-fusee-cone 1 part
5.2 Fusee Chain marine-chronometer-fusee-chain 1 part
6 Helical Gear Pair gear-pair 1 part
7 Detent Escapement 3 parts marine-chronometer-detent-escapement 1 3 assembly
7.1 Escape Wheel marine-chronometer-escape-wheel 1 part
7.2 Spring Detent marine-chronometer-detent 1 part
7.3 Passing Spring marine-chronometer-passing-spring 1 part
8 Compensation Balance 3 parts marine-chronometer-balance 1 6 assembly
8.1 Bimetallic Balance Wheel marine-chronometer-balance-wheel 1 part
8.2 Helical Balance Spring marine-chronometer-balance-spring 1 part
8.3 Timing Weight marine-chronometer-timing-weight 4 part
9 Maintaining Power marine-chronometer-maintaining-power 1 part

Used in 1 assembly

Sourcing — likely vendors

Companies that make this · indicative price $0.50–$100 · MOQ & lead are typical
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗
Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
flex.com ↗ Singapore Electronics contract mfg 1,000 pcs 6–10 wks
dixoninfo.com ↗ Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
bydelectronic.com ↗ Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗
Singapore Electronics contract mfg 1,000 pcs 6–10 wks