Seiko Cal. 6637 - 400

The 6637-400 is a sought-after Kinetic piece from Seiko's golden era. It features a White dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-523a33bae733]

Also known as: Monster, Sea Horse

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

35mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

33j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1967

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