Seiko Cal. 5218 - 378

The Seiko 5218-378 represents an important milestone in Seiko's 1982 lineup. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-a36ece8af3fc]

Also known as: Tuna, Golden Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1982

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