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Watch Database

Hamilton 637

ULTRA-THIN *

Base: Buren 280

Mainspring Listing

Dimensions	GR Reference #	End Type
1.00 x 0.110 x 340 x 10.0 mm		Manual
1.00 x 0.105 x 340 x 9.5 mm	GR2451	Manual

Parts Listing

Part Description	Reference #	Alternate	Discontinued
BALANCE COMPLETE, HT 2.41	721/1395	721/1395	Yes
BALANCE COMPLETE, HT 2.46	721/1396	721/1396	Yes
BARREL	182/901
BARREL ARBOR	195/1012	195/BUR 280
CANNON PINION, HT 1.69	240/1481
CANNON PINION, HT 1.85	240/1627
CANNON PINION, HT 2.45	240/1822
CENTER WHEEL	201/869
CLICK	425/747
CLICKSPRING	430/798
CLUTCH LEVER	435/710	435/BUR 280
CLUTCH WHEEL	407/849	407/849	Yes
CROWN WHEEL COMPLETE	420/957
ESCAPE WHEEL, C/C	702/391
ESCAPE WHEEL, S/S	705/1023
FOURTH WHEEL, REGULAR	220/603
FOURTH WHEEL, REGULAR C/S	220/604
FOURTH WHEEL, SECOND	224/531
FOURTH WHEEL, SECOND C/S	224/532	224/532	Yes
HOUR WHEEL, HT 1.00	250/1223
HOUR WHEEL, HT 1.23	250/1343
MAINSPRING	770/90
MAINSPRING 1.00-.105-340 9,5	MS-15105P	GR 2451
MAINSPRING 1.00-.11-340 10	MS-110P	GR 2456
MINUTE WHEEL	260/803	260/803	Yes
PALLET ARBOR	72S/268P	714/AS 1525
PALLET COMPLETE	710/998	710/998	Yes, use 307850/HAM
RATCHET WHEEL	415/946	415/946	Yes
REGULATOR	301/945
ROLLER	82S/302R
ROLLER, INC	82S/321R
SCREW, CASE	5101/248
SCREW, CLICK	5425/427
SCREW, CROWN WHEEL	5420/574
SCREW, DIAL SIDE	5750/454
SCREW, PALLET BRIDGE	5125/298
SCREW, PLATE	5110/584
SCREW, RATCHET WHEEL	5415/488	5415/488	Yes
SCREW, SET BRIDGE	5445/344
SCREW, SET LEVER	5443/1078
SCREW, STUD	5738/300
SET BRIDGE	445/967	445/967	Yes
SET LEVER W/SCREW	443/1090
SET SPRING	440/784
SET WHEEL	450/818
STAFF, GIROCAP HT 2.41	100/2211
STAFF, INCA HT 2.47	100/2210
STEM	200/1614F	200/1614F	Yes
STEM	401/501	401/BUR 280
STEM, MALE W/FEMALE POST	360/505	404/BUR 280
THIRD WHEEL	210/1103
THIRD WHEEL, C/S	217/48
WINDING PINION	410/1015	410/1015	Yes

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