Seiko Cal. 6642 - 503

This Automatic model from 1970 features a 42mm Two-Tone case. With its 19mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-19af9ce4c5ca]

Also known as: Tuna, Silverwave

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1970

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