Seiko Cal. 4577 - 387

Released in 1970, the Cal. 4577 with design code 387 was part of Seiko's domestic market collection. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-e0239cbb9bd1]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

15.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Champagne

Jewels

22j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1970

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