Seiko Cal. 7178 - 310

The Seiko 7178-310 represents an important milestone in Seiko's 1989 lineup. It features a Green dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-74f486d28f3c]

Also known as: Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Green

Jewels

22j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1989

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