Seiko Cal. 6637 - 612

The Seiko 6637-612 represents an important milestone in Seiko's 1981 lineup. It features a Silver dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-6e143871d82f]

Also known as: Panda, Goldfeather

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

13.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1981

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