Seiko Cal. 7138 - 816

The Seiko 7138-816 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-b8c88580c9d1]

Also known as: UFO

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1971

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