Seiko Cal. 3878 - 689

The Seiko 3878-689 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-7b6ffd85c169]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1976

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