Seiko Cal. 4538 - 678

This Hand-Winding model from 1978 features a 42mm Two-Tone case. With its 20mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-e6c4fdde0ea7]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1978

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