Seiko Cal. 5663 - 688

This Solar model from 1988 features a 40mm Titanium case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-07620c67f7b5]

Also known as: Monster

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1988

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