Seiko Cal. 5634 - 447

This Hand-Winding model from 1975 features a 45mm Two-Tone case. With its 19mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-a93fac1201fd]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1975

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