360° view of the Type 21 chronograph

Chronograph By 360 Degrés

I N T E R N A L V I E W O F T H E M O VE M E N T

A N D L I S T O F M A T E R I A L S

N° List of materials ETA 2892 A2

100 Main plate, jewelled

105 Barrel bridge, jewelled

110 Train wheel bridge, jewelled

121/4 Balance bridge for regulator with poniter, for shock

absorber, stud support ETACHRON, corrector

125 Pallet bridge, jewelled

144 Dial fastener

161 Centre tube

166/1 Casing clamp, for waterproof case

180/1 Movement barel complete

185 Barrel drum

190 Barrel cober

195 Barrel arbor

203 Intermediate wheel

210 Third wheel

227 Second wheel

242 Cannon pinion with driving wheel

255/1 Hour wheel, assembled

260 Minute wheel

303/5 Two-piece regulator, with pointer, for stud support

ETACHRON and corrector

358 Regular corrector

375 Stud support, assembled

401 Winding stem, thread diameter 0.90mm

407 Sliding pinion

410 Winding pinion

415 Ratchet wheel

417 Intermediate ratchet wheel

420 Crown wheel

425 Click

435 Yoke

443/1 Setting lever, assembled

445/2 Combined setting lever jumper

450 Setting wheel, assembled

453 Intermediate setting wheel

462 Minute train bridge

511 Click plate

516 Intermediate crown wheel

705 Escape wheel

710 Pallet fork

714 Pallet staff

721 Timed annular balance, for shock-absorber and stud

support ETACHRON

728 Balance staff, for shock-absorber

730 Double roller

771 Mainspring with sliding attachment

1134 Automatic device framework, jewelled

1141 Automatic device lower bridge, jewelled

1143/1 Oscillating weignt, assembled

1481 Reduction wheel

1482 Ratchet wheel driving wheel

1485 Reverser

1488 Reversing wheel

1490 Intermediate reduction wheel

1491 Oscillating weignt bolt

1497 Ball bearing