Seiko Cal. 4577 - 377

The Seiko 4577-377 represents an important milestone in Seiko's 1984 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-298301df3ddc]

Also known as: Sportsmatic

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1984

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