Seiko Cal. 5638 - 915

The Seiko 5638-915 represents an important milestone in Seiko's 1970 lineup. It features a Navy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-54a651fa278d]

Also known as: Samurai, Monster

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1970

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