Seiko Cal. 3869 - 772

This Spring Drive model from 1976 features a 40mm Hardlex-Coated Steel case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-f5df42d6f7c7]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Champagne

Jewels

32j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1976

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