Seiko Cal. 3898 - 461

This Spring Drive model from 1977 features a 46mm Hardlex-Coated Steel case. Powered by the 3898 caliber with 29j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-d8267dc3035d]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Champagne

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1977

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