Seiko Cal. 4570 - 398

The Seiko 4570-398 represents an important milestone in Seiko's 1976 lineup. Powered by the 4570 caliber with 19j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-94e3f7ff1be7]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1976

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