Seiko Cal. 7198 - 631

The 7198-631 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7198 caliber with 22j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-d4e9440d0dfc]

Also known as: Turtle

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1979

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