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Seiko 6105B

Mechanical c. 1968 Self-winding (rotor) Date Hacking
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Notes

1968-1974 sophisticated excenter self-winding mechanism with just one gear stage (Fig.4)

Dimensions

Width27 lignes (60.91 mm)
Height5.25 mm
Stem height1.7 mm
Hands (H × M × S)1.5 × 0.9 × 0.2 mm

Technical data

Beat rate21,600 vph (3 Hz)
Lift angle54 °
Power reserve46 h
Jewels—
Shock protection—
Mobile stud carrierNo

Complications

Self windingRotor
Date Yes (quick set)
Day No
HackingYes
ChronographNo

Mainspring

GR code—
Height—
Thickness—
Length—
Barrel diameter—

Overview

TypeMechanical
Manufacturer Seiko
Yearc. 1968
Family —
Clone of —

Documents

None

Updated 7 days ago · 0 revisions