Seiko Cal. 7138 - 561

The Seiko 7138-561 represents an important milestone in Seiko's 1990 lineup. It features a Silver dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-352e2587bd7e]

Also known as: UFO, Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1990

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