Seiko Cal. 5638 - 878

The Seiko 5638-878 represents an important milestone in Seiko's 1976 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-b46608cdf1bc]

Also known as: Monster

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1976

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