Seiko Cal. 0781 - 370

This Quartz model from 1967 features a 39mm Hardlex-Coated Steel case. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-d6aeb19508bc]

Also known as: Tuna, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1967

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