Screw-Down Crown

Assembly

Lag screws aka lag bolts 002.png · Commons ↗ Report photo

The sealed control: the crown threads onto a case tube and compresses stacked gaskets, taking the watch's most vulnerable opening out of play underwater.

Direct parts	4
Total parts	4
Used in	1 assembly
Class	Assembly

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The sealed control: the crown threads onto a case tube and compresses stacked gaskets, taking the watch's most vulnerable opening out of play underwater. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Screw-Down Crown parts and their functions

4 top-level parts · 4 parts in total · full bill of materials below

Screw-Down Crown parts diagram: 1 crown head, 2 winding stem, 3 case tube, 4 o-ring set. 4 parts in 4 top-level items. — Screw-Down Crown parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	Crown Head	1×	Threaded crown
2	Winding Stem	1×	Two-piece stem
3	Case Tube	1×	Threaded case tube
4	O-Ring Set	1×	Crown gasket stack

3D model

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Build & assembly graph

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Bill of materials for Screw-Down Crown

4 top-level lines · 4 rows shown · 4 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	Crown Head	dive-watch-crown-head	1×	1	·	part
2	Winding Stem	dive-watch-winding-stem	1×	1	·	part
3	Case Tube	dive-watch-case-tube	1×	1	·	part
4	O-Ring Set	oring-set	1×	1	·	part

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Where the screw-down crown is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Watches & Timepieces 1 Dive Watch

Used in 1 assembly

Dive Watch

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.01–$2. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇮🇳Sundram Fasteners sundram.com ↗	Chennai, IN	Fasteners	10,000 pcs	3–5 wks
🇮🇳Lakshmi Precision Screws lpsindia.com ↗	Rohtak, IN	Fasteners	10,000 pcs	3–5 wks
🇨🇳Suzhou Escort escort-fastener.com ↗	Suzhou, CN	Fasteners	10,000 pcs	3–5 wks
🇨🇳Shanghai Tianbao tbfastener.com ↗	Shanghai, CN	Fasteners	10,000 pcs	3–5 wks
🇮🇳Sterling Tools sterlingtools.in ↗	Faridabad, IN	Fasteners	10,000 pcs	3–5 wks