Seiko Cal. 7197 - 640

The Seiko 7197-640 represents an important milestone in Seiko's 1977 lineup. It features a Black dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-9ab9e8abe3e5]

Also known as: UFO, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1977

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