Seiko Cal. 5634 - 674

The Seiko 5634-674 represents an important milestone in Seiko's 1984 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-2b4f84313f15]

Also known as: UFO

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1984

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