Seiko Cal. 6637 - 120

The Seiko 6637-120 represents an important milestone in Seiko's 1980 lineup. Powered by the 6637 caliber with 28j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-675e61983550]

Also known as: Pogue, Rally

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1980

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