Seiko Cal. 3899 - 556

The Seiko 3899-556 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-fd0908285bb9]

Also known as: Tuna, World Timer

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

11.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1977

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