Seiko Cal. 4577 - 734

This Hand-Winding model from 1974 features a 41mm Gold-Plated case. Powered by the 4577 caliber with 23j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-4fe17c2adb8c]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1974

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