Seiko Cal. 6637 - 942

The 6637-942 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6637 caliber with 27j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-e065f2e4a37f]

Also known as: Turtle, Crown

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

27j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1985

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