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Seiko 7625D

Mechanical c. 1964 Self-winding (rotor) Date
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Notes

1964- sophisticated excenter self-winding mechanism with just one gear stage (Fig.4)

Dimensions

Width27.6 lignes (62.26 mm)
Height5.7 mm
Stem height1.7 mm
Hands (H × M × S)1.5 × 0.9 × 0.2 mm

Technical data

Beat rate18,000 vph (2.5 Hz)
Lift angle—
Power reserve43 h
Jewels—
Shock protection—
Mobile stud carrierNo

Complications

Self windingRotor
Date Yes
Day No
HackingNo
ChronographNo

Mainspring

GR codeGR2939-X
Height1.2 mm
Thickness0.11 mm
Length380 mm
Barrel diameter10 mm

Overview

TypeMechanical
Manufacturer Seiko
Yearc. 1964
Family —
Clone of —

Documents

None

Updated 7 days ago · 0 revisions