BOMwiki the bill-of-materials encyclopedia

Automatic Caliber Assembly

Self-winding mechanical movement: mainspring barrel, gear train, escapement, balance, keyless and automatic winding works, built on a jewelled mainplate under its bridges. 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

10 top-level lines · 22 rows shown · 19 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Mainplate & Bridges mechanical-watch-mainplate 1 part
2 Jewel Set mechanical-watch-jewel-set 1 part
3 Fastener Set fastener-set 1 part
4 Mainspring Barrel 2 parts mechanical-watch-barrel-assembly 1 2 assembly
4.1 Barrel mechanical-watch-barrel 1 part
4.2 Coil Spring coil-spring 1 part
5 Gear Train 1 parts mechanical-watch-gear-train 1 3 assembly
5.1 Train Wheel mechanical-watch-train-wheel 3 part
6 Escapement 2 parts mechanical-watch-escapement 1 2 assembly
6.1 Escape Wheel mechanical-watch-escape-wheel 1 part
6.2 Pallet Fork mechanical-watch-pallet-fork 1 part
7 Balance Assembly 3 parts mechanical-watch-balance 1 3 assembly
7.1 Balance Wheel & Staff mechanical-watch-balance-wheel 1 part
7.2 Coil Spring coil-spring 1 part
7.3 Jewel Set mechanical-watch-jewel-set 1 part
8 Keyless Works 1 parts mechanical-watch-keyless-works 1 1 assembly
8.1 Winding Stem & Clutch mechanical-watch-winding-stem 1 part
9 Automatic Winding 3 parts mechanical-watch-auto-winding 1 4 assembly
9.1 Rotor mechanical-watch-rotor 1 part
9.2 Ball Bearing ball-bearing 1 part
9.3 Reverser Wheel mechanical-watch-reverser-wheel 2 part
10 Motion Works mechanical-watch-motion-works 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