Seiko Cal. 6631 - 707

The 6631-707 is a sought-after Solar piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-57511496fba9]

Also known as: Silverwave

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

21j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1988

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