Seiko Cal. 5634 - 839

The Seiko 5634-839 represents an important milestone in Seiko's 1987 lineup. It features a White dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-84a379e078c5]

Also known as: Bullhead, Navigator

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1987

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