Seiko Cal. 4523 - 784

This Automatic model from 1975 features a 40mm Two-Tone case. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-546ea6ecb326]

Also known as: Monster, UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1975

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