Seiko Cal. 5664 - 378

This Solar model from 1966 features a 43mm Two-Tone case. With its 21mm lug width and 12.3mm profile, it sits comfortably on most wrists. [seikata-wm-a020b4e02ad1]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1966

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