Seiko Cal. 6637 - 918

This Automatic model from 1980 features a 42mm Titanium case. It features a Champagne dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-e094c48cf12b]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1980

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