Seiko Cal. 3878 - 989

The Seiko 3878-989 represents an important milestone in Seiko's 1965 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-5ed64b8d2edb]

Also known as: Samurai, Emperor

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1965

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