Elgin Grade 121 Parts

Arbors

	Part	Factory Part Number
	Arbors: Barrel	206
	Arbors: Pallet	224

Collets

	Part	Factory Part Number
	Collets: Hair Spring	358

Hands

	Part	Factory Part Number
	Hands: Hour and Minute	6s
	Hands: Second	6s

Jewels

	Part	Factory Part Number
	Jewels: Balance: Cap: Lower	466
	Jewels: Balance: Cap: Upper	2193
	Jewels: Balance: Hole: Lower	453
	Jewels: Balance: Hole: Upper	453
	Jewels: Escape: Hole: Lower	491
	Jewels: Escape: Hole: Upper	1374
	Jewels: Fourth: Lower	514
	Jewels: Fourth: Upper	1396
	Jewels: Pallet Jewel	556
	Jewels: Pallet: Hole: Lower	2428
	Jewels: Pallet: Hole: Upper	1418
	Jewels: Roller Jewel	570
	Jewels: Third: Lower	1436
	Jewels: Third: Upper	530

Levers

	Part	Factory Part Number
	Levers: Setting	1444
	Levers: Setting	1445

Pallets

	Part	Factory Part Number
	Pallets: And Fork With Stones	2589
	Pallets: Fork and Arbor with Stones	2731

Pinions

	Part	Factory Part Number
	Pinions: Bevel	1353
	Pinions: Cannon	1458
	Pinions: Center	670
	Pinions: Escape	684
	Pinions: Fourth	695
	Pinions: Third	1463

Pins

	Part	Factory Part Number
	Pins: Bevel Pinion	1465

Rollers

	Part	Factory Part Number
	Rollers: Table: With Pin	2432
	Rollers: Table: Without Pin	759

Screws

	Part	Factory Part Number
	Screws: Balance	1570
	Screws: Banking	1577
	Screws: Bridge: Barrel	935
	Screws: Bridge: Pallet	1587
	Screws: Case	1594
	Screws: Cock: Balance	935
	Screws: Dial Foot	1600
	Screws: Jewel: Balance: Lower	1604
	Screws: Jewel: Balance: Upper	1604
	Screws: Jewel: Escape: Upper	1604
	Screws: Jewel: Fourth: Upper	1604
	Screws: Jewel: Third: Upper	1604
	Screws: Lever: Setting	1609
	Screws: Main	1611
	Screws: Plate Top	935
	Screws: Spring: Click	928
	Screws: Spring: Setting	904
	Screws: Spring: Setting Lever	904
	Screws: Spring: Vibrating Arm	1615
	Screws: Stud Hair Spring	1620

Springs

	Part	Factory Part Number
	Springs: Arm Vibrating	1471
	Springs: Click	103
	Springs: Hairspring	806	Strength: 1
	Springs: Lever: Setting	1258
	Springs: Mainspring	824	Strength: .007
	Springs: Setting	1479

Staff

	Part	Factory Part Number
	Staff: Balance	868	Combination Roller note: See notes on Balance Staffs in Special Information Section.
	Staff: Center	2360

Studs

	Part	Factory Part Number
	Studs: Hair Spring	852

Uncategorized

	Part	Factory Part Number
	Arm Vibrating	1306
	Arm Vibrating	1307
	Balance	249
	Balance Complete	4101
	Barrel	291
	Click	98
	Dial	6s
	Regulator	743

Washers

	Part	Factory Part Number
	Washers: Main Screw	1485

Wheels

	Part	Factory Part Number
	Wheels: Center	1552
	Wheels: Center Complete	2159
	Wheels: Escape	1490	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	1495	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	2377
	Wheels: Fourth and Pinion	2376
	Wheels: Hour	1937
	Wheels: Intermediate: Setting	1497
	Wheels: Intermediate: Winding	109
	Wheels: Main	154
	Wheels: Minute	1500
	Wheels: Ratchet	108
	Wheels: Setting	1502
	Wheels: Third	1086
	Wheels: Third and Pinion	2174