Seiko Cal. 6157 - 820

This Solar model from 1968 features a 42mm Two-Tone case. With its 18mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-8d1f4c4c72a7]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

17j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1968

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