Seiko Cal. 6178 - 163

The Seiko 6178-163 represents an important milestone in Seiko's 1971 lineup. It features a Navy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-a8d993367e14]

Also known as: Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

44mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1971

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