Seiko 66B, Seiko 66 B


Our selection of spare parts for this calibre: Seiko 66B

Part 231.660 and 301.660 are also used by Seiko 4006A, You can find this there

Our selection of spare parts for this calibre: Seiko 4006A, 27 jewels.

The differend parts for Seiko 4006A, 17 jewels are:
112806, 500.808, 195.806. ( we don't have them)

All the other parts are the same as Seiko 4006A, 27 jewels



For this calibre we acknowledge the following parts as a base:


205... Barrel (drum and cover) 

213... Barrel arbor

224... Center wheel with cannon pinion

232... Third wheel

241... Fourth wheel, second wheel

225... Cannon pinion

245 Cannon pinion for sweep second wheel

271... Hour wheel

261... Minute wheel

275 Sweep second pinion

301 Regulator for flat hairspring

307 Regulator for breguet hairspring

351... Stem

404 Stem male/female

282... Clutch wheel

283... Winding pinion

285... Ratched wheel

284... Crown wheel

481... Crown wheel ring

423 Crown wheel core, upper

381.. Click

382... Click spring

434 Clicking spring

384... Yoke

437 Rocking bar

385... Yoke spring

383... Setting lever

386... Setting lever spring

453 Intermediate setting wheel

462 Minute work cock

704 Escape wheel for lower endpiece

251... Escape wheel  

301...Juwelled pallet fork

711 Pallet with lower endstone

310... Balance complete

315... Balance staff

728 Balance staff


401... Mainspring

790 Pin escape wheel

792 Balance staff

797 Pin pallet fork for roller

798 Finger

800 Pin pallet fork for finger


If the part you need it not available or listed, do not hesitate to contact us.

Below figure is an example for this calibre type: