Seiko Cal. 3898 - 613

This Hand-Winding model from 1973 features a 36mm Stainless Steel case. Powered by the 3898 caliber with 26j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-e58f099fb2bd]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1973

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