Seiko Cal. 4577 - 903

The Seiko 4577-903 represents an important milestone in Seiko's 1967 lineup. Powered by the 4577 caliber with 22j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-8274efefb862]

Also known as: Turtle, Samurai

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1967

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