Seiko Cal. 4577 - 633

The Seiko 4577-633 represents an important milestone in Seiko's 1971 lineup. Powered by the 4577 caliber with 27j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-cf235399dc8d]

Also known as: Samurai, Pogue

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1971

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