 | Ranfft Watches | Pink Pages for Timepieces |
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| Index | Timepiece Archive, Categories | Archive: Watch Movements | Timepiece Market |
 Fig. 1  Fig. 2  Fig. 3  Fig. 4 | Seiko 6139B Features automatic chronograph, 60s, 30min, pillar wheel no manual wind day: quickset by pushing the crown deeper, 2 languages date: quickset by pushing the crown less deep Data 12''', Dm= 27.0mm, Do= 27.4mm H= 7.2mm (dial spacer +0.2mm) 17/21 jewels f = 21600 A/h power-reserve 45h Balance staff Seiko 315611 Stem Seiko 354617 / Seiko 357612 (normal/divers) Mainspring / battery Seiko 401616 Hands 1.50 x 0.90 x 0.26 / 0.26mm Comments about the data | Remarks 1972-1979 sophisticated excenter self-winding mechanism with just one gear stage (Fig.4) like 6139A, only minor modifications of switching mechanism (dial side) 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 6139A: 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 1973: Seiko Time Corp., Seiko, Japan, 17 Jewels; Diashock Not for Sale! The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating. |
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