Elgin Grade 277 Parts

Arbors

	Part	Factory Part Number
	Arbors: Barrel	189
	Arbors: Pallet	1303

Collets

	Part	Factory Part Number
	Collets: Barrel Arbor	351
	Collets: Hair Spring	352

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	1347
	Jewels: Balance: Hole: Lower	443
	Jewels: Balance: Hole: Upper	443
	Jewels: Center: Lower	1341
	Jewels: Center: Upper	1333
	Jewels: Escape: Cap: Lower	1360
	Jewels: Escape: Cap: Upper	1357
	Jewels: Escape: Hole: Lower	1380
	Jewels: Escape: Hole: Upper	1364
	Jewels: Fourth: Lower	1402
	Jewels: Fourth: Upper	1385
	Jewels: Pallet Jewel	546
	Jewels: Pallet: Cap: Lower	2200
	Jewels: Pallet: Cap: Upper	2204
	Jewels: Pallet: Hole: Lower	2249
	Jewels: Pallet: Hole: Upper	1408
	Jewels: Roller Jewel	559
	Jewels: Third: Lower	1435
	Jewels: Third: Upper	1420

Levers

	Part	Factory Part Number
	Levers: Setting	1830

Nuts

	Part	Factory Part Number
	Nuts: Regulator	579
	Nuts: Regulator Nut and Screw	584

Pallets

	Part	Factory Part Number
	Pallets: And Fork With Stones	596
	Pallets: Fork and Arbor with Stones	1449
	Pallets: With Stones	2

Pinions

	Part	Factory Part Number
	Pinions: Bevel	178
	Pinions: Cannon	180
	Pinions: Center	652
	Pinions: Escape	1459
	Pinions: Fourth	182
	Pinions: Third	1876

Rollers

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

Screws

	Part	Factory Part Number
	Screws: Balance	886
	Screws: Banking	889
	Screws: Bridge: Barrel	893
	Screws: Case	903
	Screws: Click	1722
	Screws: Cock: Balance	908
	Screws: Dial Foot	911
	Screws: Index	912
	Screws: Jewel: Balance: Lower	913
	Screws: Jewel: Balance: Upper	913
	Screws: Jewel: Center: Upper	913
	Screws: Jewel: Escape: Lower	1606
	Screws: Jewel: Escape: Upper	913
	Screws: Jewel: Fourth: Lower	1606
	Screws: Jewel: Fourth: Upper	913
	Screws: Jewel: Pallet: Lower	1606
	Screws: Jewel: Pallet: Upper	913
	Screws: Jewel: Third: Lower	1606
	Screws: Jewel: Third: Upper	913
	Screws: Lever: Setting	2287
	Screws: Main	184
	Screws: Pillar	921
	Screws: Pillar	1612
	Screws: Potance	922
	Screws: Spring: Click	910
	Screws: Spring: Setting	928
	Screws: Spring: Setting Lever	1603
	Screws: Spring: Vibrating Arm	913
	Screws: Stud Hair Spring	934

Springs

	Part	Factory Part Number
	Springs: Arm Vibrating	183
	Springs: Click	1895
	Springs: Hairspring	791	Strength: 1
	Springs: Lever: Setting	1900
	Springs: Mainspring	812	Strength: .0085
	Springs: Setting	129

Staff

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

Stop Works

	Part	Factory Part Number
	Stop Works: Female	12
	Stop Works: Male	11

Studs

	Part	Factory Part Number
	Studs: Hair Spring	843

Uncategorized

	Part	Factory Part Number
	Arm Vibrating	1778
	Balance	236
	Balance Complete	4046
	Band Dust	2141
	Barrel	267
	Click	1799
	Dial	18s
	Fork	1
	Index	432
	Regulator	720

Washers

	Part	Factory Part Number
	Washers: Main Screw	185
	Washers: Staff Center	1553

Wheels

	Part	Factory Part Number
	Wheels: Center	2296
	Wheels: Center Complete	2157
	Wheels: Escape	2168	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	2337	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	1024
	Wheels: Hour	186
	Wheels: Intermediate: Winding	177
	Wheels: Main	175
	Wheels: Minute	187
	Wheels: Ratchet	1064
	Wheels: Setting	176
	Wheels: Third	1077
	Wheels: Third and Pinion	1091