Seiko Cal. 3877 - 439

The Seiko 3877-439 represents an important milestone in Seiko's 1987 lineup. Powered by the 3877 caliber with 18j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-d175e60fb0de]

Also known as: Tuna

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1987

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