Seiko Cal. 3860 - 598

The Seiko 3860-598 represents an important milestone in Seiko's 1981 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-85bf7114356f]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Green

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1981

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