Seiko Cal. 6631 - 658

The 6631-658 is a sought-after Solar piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 60m of water resistance. [seikata-wm-36ead63762e1]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

15.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1968

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