Elgin Grade 178 Parts

Arbors

	Part	Factory Part Number
	Arbors: Barrel	190
	Arbors: Pallet	5

Collets

	Part	Factory Part Number
	Collets: Hair Spring	353

Hands

	Part	Factory Part Number
	Hands: Hour and Minute	18s
	Hands: Second	18s

Jewels

	Part	Factory Part Number
	Jewels: Balance: Cap: Lower	1348
	Jewels: Balance: Cap: Upper	2191
	Jewels: Balance: Hole: Lower	443
	Jewels: Balance: Hole: Upper	443
	Jewels: Pallet Jewel	546
	Jewels: Roller Jewel	559

Levers

	Part	Factory Part Number
	Levers: Setting	114

Pallets

	Part	Factory Part Number
	Pallets: And Fork With Stones	597
	Pallets: Fork and Arbor with Stones	616
	Pallets: With Stones	4

Pinions

	Part	Factory Part Number
	Pinions: Bevel	1739
	Pinions: Cannon	50
	Pinions: Center	652
	Pinions: Escape	672
	Pinions: Fourth	7
	Pinions: Third	6

Rollers

	Part	Factory Part Number
	Rollers: Table: With Pin	2068
	Rollers: Table: Without Pin	749

Screws

	Part	Factory Part Number
	Screws: Balance	888
	Screws: Banking	890
	Screws: Bridge: Bevel Pinion	892
	Screws: Case	903
	Screws: Cock: Balance	908
	Screws: Dial Foot	911
	Screws: Jewel: Balance: Lower	913
	Screws: Jewel: Balance: Upper	913
	Screws: Lever: Setting	916
	Screws: Main	63
	Screws: Pillar	921
	Screws: Potance	922
	Screws: Spring: Click	910
	Screws: Spring: Vibrating Arm	925
	Screws: Stud Hair Spring	1619

Springs

	Part	Factory Part Number
	Springs: Arm Vibrating	61
	Springs: Click	112
	Springs: Hairspring	792	Strength: 2
	Springs: Mainspring	812	Strength: .009

Staff

	Part	Factory Part Number
	Staff: Balance	857	note: See notes on Balance Staffs in Special Information Section.
	Staff: Center	2357

Studs

	Part	Factory Part Number
	Studs: Hair Spring	844

Uncategorized

	Part	Factory Part Number
	Arm Vibrating	1735
	Balance	236
	Balance Complete	4068
	Barrel	269
	Click	337
	Dial	18s
	Fork	3
	Regulator	724

Washers

	Part	Factory Part Number
	Washers: Main Screw	66
	Washers: Staff Center	1553

Wheels

	Part	Factory Part Number
	Wheels: Center	2296
	Wheels: Center Complete	2157
	Wheels: Escape	981	note: Two diameters of escape wheels have been made in 18, 16, and 6 sizes. The larger being known as New Style (N.S.) which will be supplied unless Old Style (O.S.) is ordered.
	Wheels: Escape and Pinion	994	note: Two diameters of escape wheels have been made in 18, 16, and 6 sizes. The larger being known as New Style (N.S.) which will be supplied unless Old Style (O.S.) is ordered.
	Wheels: Fourth	1008
	Wheels: Fourth and Pinion	1022
	Wheels: Hour	59
	Wheels: Intermediate: Setting	58
	Wheels: Intermediate: Winding	38
	Wheels: Main	65
	Wheels: Minute	1062
	Wheels: Ratchet	39
	Wheels: Setting	57
	Wheels: Third	1075
	Wheels: Third and Pinion	1089