Seiko Lassale

cal. 9442

Factory Spec. 20 SPY

Thermocompensated: Dual Oscillator (32 kHz + 40 kHz)

User Adjustable: Yes

lassale 

Some details for this watch are missing because it has not yet undergone comprehensive testing.

Parent Company Seiko Holdings Corporation
Brand Seiko
Model Series Twin Quartz
Model Name Lassale
Model Number unknown
Case Number 5019
Serial Number 120409
Approx. Date of Manufacture February 1981
Calibre (mvt maker) 9442
Calibre (brand) 9442
Factory SPY 20
TC Appproach Count adjustment & twin quartz
Frequency (XO 1) 32 kHz
Frequency (XO 2) 40 kHz
Rate Adjustment User
Major Inhibition Period unknown
Minor Inhibition Period unknown
Power Disposable cell
Cell Number SR927SW
Case Back Press (no tool needed for closing)
Water Resistance unknown
Features 3-hand, no numeral dial
  Date (not perpetual)
Timing Results Basic data  &  Further details
Images Photos - Large File Sizes!
Documents Parts list
  Technical guide
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