Seiko Cal. 4577 - 581

The Seiko 4577-581 represents an important milestone in Seiko's 1966 lineup. Powered by the 4577 caliber with 17j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-978d08017daf]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

37mm

Case Thickness

11.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1966

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