Seiko Cal. 4577 - 720

This Hand-Winding model from 1973 features a 35mm Titanium case. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-aadae9ff6fa5]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

29j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1973

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