watches automatic

Automatic mainsprings for wristwatches

Automatic mainsprings for wristwatches provide a highly resilient, corrosion-resistant power source for modern automatic movements. The special material ensures constant torque delivery, high elasticity and a particularly long service life - even under intensive stress from the rotor winding mechanism.

The variants available from Boley are equipped with a riveted drag spring, which ensures smooth power flow in the automatic system and enables clean winding of the barrel.

Subgroups

0.60
name width Ø thickness length calibre item No.
1971x 0.63 9.0 0.10 340 AP 2120/21 82019710
0.70
name width Ø thickness length calibre item No.
2049x 0.70 9.0 0.094 400 AP 2123 82020490
2061x 0.70 9.0 0.10 375 UNIV 67. 1-66 82020610
2124x 0.78 8.0 0.077 390 AP 2140 82021240

name	width	Ø	thickness	length	calibre	item No.
1971x	0.63	9.0	0.10	340	AP 2120/21	82019710

name	width	Ø	thickness	length	calibre	item No.
2049x	0.70	9.0	0.094	400	AP 2123	82020490
2061x	0.70	9.0	0.10	375	UNIV 67. 1-66	82020610
2124x	0.78	8.0	0.077	390	AP 2140	82021240

0.90

name	width	Ø	thickness	length	calibre	item No.
2371x	0.95	6.5	0.07	240	OMEGA 670, 671, 680 - 682	82023710
2373x	0.95	6.5	0.081	-	OMEGA 683, 684, 685	82023730
2377x	0.95	10.0	0.11	400		82023770
2378x	0.95	11.5	0.12	500	OMEGA 1010	965010101208
2379x	0.95	11.5	0.15	340	OMEGA 1000	965010001208

1.00

name	width	Ø	thickness	length	calibre	item No.
2436x	1.00	9.5	0.095	340	BUREN 1000	82024360
2450x	1.00	10.0	0.105	320	OMEGA 570	82024500
2470x	1.00	10.5	0.115	360	AS 1862-1863 / MIDO 1147	82024700
2465x	1.00	11.0	0.115	360	AS 1716 - 1717 / 1820 - 1831	82024650
550x	1,01	10.0	0.11	380	OMEGA 550 - 552, 751, 752	96505501208
0660x	1.02	10.0	0,118	405	ZENITH ELITE 660, 670, 680-685	99500771660
2534x	1.05	10.5	0.115	430	ETA 2890 - 2892-A2	82025340
2537x	1.05	10.5	0.15	340		82025370
1040x	1.05	12.0	0.13	500	OMEGA 1040, LEM 1345	965010401208
2539x	1.06	7.0	0.072	300	ETA 2000	82025390

1.10

name	width	Ø	thickness	length	calibre	item No.
2593x	1.10	8.0	0.09	260	LE COULTRE	82025930
330x	1.10	9.0	0.095	340	OMEGA 330, 341	82026050
2653x	1.10	10.0	0.12	340	IWC 854. FÖR 220 - 226	82026531
2647x	1.10	11.0	0.115	360	ETERNA 1428-29	82026470
2628x	1.10	11.0	0.105	360		82026280
2786x	1.15	7.5	0.08	360	AS 530	82027860
2797x	1.15	8.5	0.095	260	AS 1972-73	82027970
2801x	1.15	8.5	0.095	280	AS 1782-1783	82028010
2805x	1.15	10.5	0.11	460	AS 5200	82028053
2820x	1.15	11.5	0.15	360	AS 1919-1923	82028200
2825x	1.16	11.2	0.115	455	RX 3130/3135/3155/3175/3185 (Generic)	82028250

1.20

name	width	Ø	thickness	length	calibre	item No.
2885x	1,20	7.5	0.085	240	ETER 1445	82028850
2896x	1,20	8.0	0.09	280	BIF 910	82028960
2920x	1,20	9.0	0.10	300	MIDO 1117P+PC / DUROWE 570	82029200
2904x	1,20	9.5	0.095	380	OTERO 77-78	82029040
2925x	1,20	9.5	0.10	330	TISS 783-784	82029250
2937x	1,20	10.0	0.105	340	CERT. 25-65, PUW 1260-1264	82029370
2974x	1,20	10.0	0.12	340	PUW 1560.1564	82029740
2922x	1,20	10.0	0.10	340	OMEGA 470, 490, 491, 500, IWC 8531	82029220
2950x	1,20	10.0	0.11	320	FE 4611	82029500
2973x	1,20	10.5	0.12	360	TISS 2471/1481	82029730
2944x	1,20	12.0	0.106	590	OMEGA 1045, LEM. 5100	965010451208
0400x	1,22	12.0	0.146	490	ZENITH EL PRIMERO 400, 3019	99500771400
3132x	1.23	10.5	0.105	480	ETA 2846	82031320
3149x	1.23	10.5	0.132	400	ETA 2821.2824	82031490
3077x	1.24	12.5	0.146	490	RX 4030 (Generic)	82030770
1160-770	1.25	6.50	0.07	280	RX 1160 (Generic)	981007701160
3092x	1.25	7.5	0.085	315	RX 2030/2035 (Generic)	82030920
3141x	1.25	10.0	0.115	315	ZENITH 2522P+PC, 2572PC	82031410
3120x	1.25	12.0	0.10	500	ETA 2820-22	82031200
3156x	1.27	7.75	0,071	440	RX 2130/2135 (Generic)	82031560

1.30

name	width	Ø	thickness	length	calibre	item No.
3173x	1.30	6.0	0.06	220	AS 1635-1657	82031730
3187x	1.30	6.5	0.07	240	ETER 1401-03	82031870
3193x	1.30	6.5	0.075	220	ETA 1216-1218	82031930
3190x	1.30	7.0	0.07	300	ETA 2650-58	82031900
3203x	1.30	8.0	0.08	260	LONG. 19AS	82032030
3204x	1.30	8.0	0.08	280	FELSA 700-709	82032040
3219x	1.30	8.5	0.09	260	REVUE 80	82032190
3257x	1.30	10.0	0.10	360	DUR 7520-28	82032570
3315x	1.30	10.5	0.12	400	ETA 2870.2872	82033150
3318x	1.30	11.0	0.12	460	RX 1520/1530/1570 (Generic)	82033180
3328x	1.30	11.5	0.125	420	JLC 449, 468	82033280
3197x	1.32	7.0	0.085	265	ETA 2670. 2671	82031970
3846x	1.35	8.0	0.085	-	ETA 1306-20	82038460
3498x	1.35	8.5	0.09	280	MIDO 0916.0917	82034980
980-1208	1.35	10.5		-	OMEGA 980	96509801208

1.40

name	width	Ø	thickness	length	calibre	item No.
3930x	1.45	7.5	0.085	240	AS 1320-1323	82039300
3629x	1.40	8.5	0.09	300	DUR 1268-90	82036290
3943x	1.45	9.5	0.095	320	OTERO 48.481	82039430
3676x	1.40	11.2	0.10	560	RX 3000 (Generic)	82036760
3692x	1.40	11.8	0.106	530	RX 3030/3035/3055/3075/3085 (Generic)	82036920
3702x	1.40	11.5	0.11	380	ETER 1411. 1416. 1421. 1426	82037020
3957x	1.45	10.0	0.10	380	AS 1712-1713	82039570
3986x	1.45	10.5	0.11	380	AS 1902-1916	82039860
4006x	1.45	11.0	0.125	420	ETA 2770.2772	82040060
4008x	1.45	11.5	0.13	320	AS 1590-1591	82040080
3992x	1.45	11.8	0.112	565	RX 4130 (Generic)	82039920
4027x	1.46	10.0	0.72	370	RX 2230/2235 (Generic)	82040270

1.50
name width Ø thickness length calibre item No.
4123x 1.5 9.5 0.10 320 Eterna 1253 82041230
4122x 1.5 9.5 0.10 360 82041220
4160x 1.5 12.5 0.11 600 ETA 7750 82041600
1.60
name width Ø thickness length calibre item No.
4735x 1.63 10.5 0.105 420 BREIT. 11/12 82047350

e-Shop Katalog

watches automatic

more interesting products

precision welder

OTI test device

Watch Cleaner

name	width	Ø	thickness	length	calibre	item No.
4123x	1.5	9.5	0.10	320	Eterna 1253	82041230
4122x	1.5	9.5	0.10	360		82041220
4160x	1.5	12.5	0.11	600	ETA 7750	82041600