Seiko Cal. 3898 - 359

This Solar model from 1978 features a 39mm Two-Tone case. Powered by the 3898 caliber with 33j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-4a360f8da5e5]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

33j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1978

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