Seiko Cal. 6198 - 635

The Seiko 6198-635 represents an important milestone in Seiko's 1974 lineup. It features a Navy dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-845dfaa3e117]

Also known as: Tuna, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1974

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