Time 2 Timepiece

ETA 900 WATCH STEMS

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£4.55

Product ID277
BrandEta
ConditionNEW OLD STOCK
GenderMens
Functions & Features

ETA 900 WATCH STEMS

Features
manual wind
sub second

Data
10.5''', Dm= 23.35mm
H= 3.5mm
F= 1.3mm
T= 1.7mm
7/15/17 jewels
f = 18000 A/h
power reserve 43h

Balance staff
U3060 / U1424
hairspring collet 0.5mm/0.6mm

Stem  ETA900
W832, W1161

Main spring / battery
Zf1269, 1.55 x 9.0 x 0.10 x 290mm

Hands
1.40 x 0.80 / 0.22mm


ETA 900 WATCH STEMS

Remarks
option: Breguet hairspring, standard flat hairspring
differences not known between 900, 902, 903, 927-929, 938, 941, 968
likely just different bridge designs (cf. Fig.5)

family:
900: 10.5''', sub second
901: 10.5''', sweep second
930: 11.5''', sub second
932: 11.5''', sweep second

Example, year: signature; shock device
1-2) ca. 1950: Eska Watch Co, Swiss, 17 Jewels - KU
(Standard)
3-4) ca. 1950: Eska Watch Co, Swiss, 17 Jewels
(Breguet hairspring)
5) ca. 1950: 12062, EON, Avalon Watch Co, Swiss, 17 Jewels - ETA
(special balance with 10 adustable weights not known from ETA)

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S.Rodwell & Son
16 Oaklea Crescent
Blantyre
G72 PX9
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Tel: 01698 821885
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