Seiko Cal. 6637 - 854

The 6637-854 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6637 caliber with 27j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-f12a172be698]

Also known as: Emperor, Flighty

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

41mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1970

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