Seiko Cal. 4438 - 507

This Solar model from 1970 features a 42mm Two-Tone case. With its 21mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-438dde161dd5]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1970

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