Seiko Cal. 6398 - 170

This Spring Drive model from 1971 features a 44mm Two-Tone case. It features a Navy dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-aa34c1e81175]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1971

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