ISA 257

BrandISACaliber257Size5 1/2Functiono. SCVersionHands0.55x1.00StemISA258Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)Battery321

Movements

Artno.brandcaliberSizehandsfunctionspecial
161980ISA257.1305 1/20.55x​1.00o. SC

Watchparts

Part NocaliberdescriptionoriginalArtno.
401BWinding stem94300401258
443BSetting lever94300443257
4000BElectronic module94304000257
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