Seiko Cal. 6641 - 634

The Seiko 6641-634 represents an important milestone in Seiko's 1991 lineup. It features a Silver dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-dc78f9b74edd]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1991

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