FB 420 , Förster 420

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

182 Barrel (drum and cover) 

195 Barrel arbor

200 Center wheel with cannon pinion

201 Center wheel without cannon pinion

203 Center wheel and pinion intermediaire

206 Center wheel drilled without pinion

210 Third wheel

220 Fourth wheel, second wheel

224 Fourth wheel long pivot

227 Sweep second wheel

240 Cannon pinion

245 Cannon pinion for sweep second wheel

250 Hour wheel

260 Minute wheel

275 Sweep second pinion

301 Regulator for flat hairspring

307 Regulator for breguet hairspring

401 Stem

404 Stem male/female

407 Clutch wheel

410 Winding pinion

415 Ratched wheel

420 Crown wheel

422 Crown wheel ring

423 Crown wheel core, upper

425 Click

430 Click spring

434 Clicking spring

435 Yoke

437 Rocking bar

440 Yoke spring

443 Setting lever

445 Setting lever spring

453 Intermediate setting wheel

462 Minute work cock

704 Escape wheel for lower endpiece

705 Escape wheel  

710 Juwelled pallet fork

711 Pallet with lower endstone

721 Balance complete

723 Balance staff

728 Balance staff

730 Plateau

771 Mainspring

790 Pin escape wheel

792 Balance staff

797 Pin pallet fork for roller

798 Finger

800 Pin pallet fork for finger

1143 Oscillating weight

1155 Lower cock for reduction gear

1196 Oscalating weihgt Axle

1423 intermediate driving wheel for ratchet wheel

1428 stop click

1446 Ratchet wheel lower

1453 double function automatic spring

1471 stop pinion

1478 Oscillating weight wheel

1480 winding-up wheel

1482 Driving gear, mounted

1483 Rachet cq Crown wheel driver

1485 Reverser, monted

1488 Pawl winding wheel, complete

1489 Pawl winding wheel, automatic

1491 Oscillating weight bolt

1496 Oscilater weight axe

1498 Bearing wheel for oscillater weight

1499 reverser connecting wheel

1500 Wig-wag pinion

1509 Wig wag pinion spring

1530 Coupling clutch, mount

1535 Reversing Wheel

1555 winding wheel bolt

2557/1 Date star, with dial disk

2561/1 Day star with dial disk

2529 Lid for date Jumper Spring

2535 Date indicator Maintaining Plate

2536 Addition indicator maintaining small plate

2539 Date corrector operating lever

2542 Date setting wheel

2543 Intermediate date wheel

2544 Date corrector pinion

2555 Calendar driving wheel

2556 Date star driving wheel

2557 Date star

2558 Double-toothed hour wheel

2560 Day star driving wheel

2566 Date corrector

2567 Day corrector

2568 Month corrector

2569 Double corrector

2571 Day corrector spring

2573 Day jumper  spring

2575 Date jumper spring

2576 Date jumper

2577 Day jumper

2595 Date Jumper maintaining plate

2611 Jumper spring

2632 Date unlocking yoke

2633 Date Unlocking yoke Spring

2638 Lever Slide spring

2742 Corrector Mechanism

2765 Date corrector yoke

2780 Date indicator spring clip

2783 Instantaneous Unlocking Mechanism

2784 Double Jumper

2790 Calendar finger

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