Seiko Cal. 7198 - 870

The Seiko 7198-870 represents an important milestone in Seiko's 1974 lineup. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-89e8ce50660a]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1974

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