Seiko Cal. 6634 - 978

This Solar model from 1989 features a 41mm Titanium case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-16677f7b09f5]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1989

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