Seiko Cal. 6637 - 454

The 6637-454 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6637 caliber with 32j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-4f2ef7e1ecf3]

Also known as: Rally, Silverwave

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1999

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