Seiko Cal. 7131 - 438

The Seiko 7131-438 represents an important milestone in Seiko's 1991 lineup. The Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-81dfebfe0bdc]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

35j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1991

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