Fig. 1
Fig. 2
Fig. 3
Fig. 4 |
Seiko 6118A
Features
automatic
no manual wind
sweep second
date: quickset
Data
12''', Dm= 27.0mm, Do= 27.4mm
H= 5.25mm
(dial spacer +0.2mm)
F= 1.7mm
T= 2.1mm
17 jewels
f = 21600 A/h
power reserve 46h
Balance staff Seiko 315611
Stem Seiko 354617
Mainspring / battery
Seiko 401615
Hands
1.50 x 0.90 x 0.20mm |
Remarks
1968-1975
sophisticated excenter self-winding mechanism with just one gear stage (Fig.4)
In the Seiko data sheet date quickset by pushing the crown is specified, but the parts list contains only the parts for quickset by turning the crown, and the example movement here has also quickset by turning.
family/generations:
* ) quickset, turning crown (else pushing)
**) day in 2 languages
manual wind, 21600 A/h:
6100A: -
6102A: date
6110A: like 6100A, Railroad Watch
automatic, 21600 A/h:
6105A: date*
6105B: date*, hack feature
6106A: day, date, hack feature, 2 rotor screws
6106B: day, date, hack feature
6106C: day**, date, hack feature
6109A: day, date, smaller rotor
6117A: date*, GMT 24h
6117B: date*, GMT 24h, hack feature
6118A: date*
6119A: day, date, 2 rotor screws
6119B: day, date
6119C: day**, date
chronograph, 21600 A/h:
6138A: hour counter, day*/**, date*
6138B: same, modified switching mechanism
6138A: day**, date
6139B: same, modified switching mechanism
automatic, 36000 A/h:
6145A: date, Grand Seiko
6146A: day, date, Grand Seiko
6155A: date, GS Special
6156A: day, date, GS Special
6159A: date*, Diver 300
6159B: date*, hack feature, Diver 600
6185A: GS Veri Fine Adjusted
6185B: dito, hack feature
6186A: day, date, Unruhstop, GS Veri Fine Adjusted
Example, year: signature; shock device
1975: Seiko, 6118A, Japan, 17 Jewels; Diashock
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