Seiko Cal. 6377 - 431

The Seiko 6377-431 represents an important milestone in Seiko's 1987 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-7a4cb5169aea]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

8.0mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1987

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